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Browse files- README.md +7 -5
- index.html +724 -19
README.md
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---
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title:
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emoji:
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colorFrom:
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colorTo:
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sdk: static
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pinned: false
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---
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Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
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title: caractfuncions
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emoji: 🐳
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colorFrom: green
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colorTo: green
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sdk: static
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pinned: false
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tags:
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- deepsite
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---
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Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
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index.html
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<!
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<!DOCTYPE html>
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<html lang="ca">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Matemàtiques 4t ESO - Funcions</title>
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<script src="https://cdn.tailwindcss.com"></script>
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<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
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<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
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<style>
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.function-card:hover {
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transform: translateY(-5px);
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box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
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}
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.graph-container {
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transition: all 0.3s ease;
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}
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.highlight {
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background-color: #FEF3C7;
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transition: background-color 0.3s;
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}
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.tab-active {
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border-bottom: 3px solid #3B82F6;
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font-weight: 600;
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}
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</style>
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</head>
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<body class="bg-gray-50 font-sans">
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<div class="container mx-auto px-4 py-8">
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<!-- Header -->
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<header class="mb-10 text-center">
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<h1 class="text-4xl font-bold text-blue-600 mb-2">Funcions Matemàtiques</h1>
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<p class="text-xl text-gray-600">Aprendre les característiques bàsiques de les funcions per a 4t d'ESO</p>
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<div class="mt-4">
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<span class="inline-block bg-blue-100 text-blue-800 px-3 py-1 rounded-full text-sm font-medium">
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Nivell: Mitjà
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</span>
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</div>
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</header>
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<!-- Navigation Tabs -->
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<div class="flex border-b border-gray-200 mb-8">
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<button onclick="changeTab('theory')" class="tab-active px-6 py-3 text-blue-600 focus:outline-none">
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<i class="fas fa-book mr-2"></i>Teoria
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</button>
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<button onclick="changeTab('practice')" class="px-6 py-3 text-gray-500 hover:text-blue-600 focus:outline-none">
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<i class="fas fa-pen mr-2"></i>Pràctica
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</button>
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<button onclick="changeTab('interactive')" class="px-6 py-3 text-gray-500 hover:text-blue-600 focus:outline-none">
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<i class="fas fa-sliders mr-2"></i>Interactiu
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</button>
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</div>
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<!-- Theory Tab Content -->
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<div id="theory-tab" class="tab-content">
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<div class="grid md:grid-cols-3 gap-6 mb-8">
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<!-- Concept Card -->
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<div class="bg-white p-6 rounded-lg shadow-md function-card">
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<div class="text-blue-500 mb-4">
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<i class="fas fa-lightbulb text-3xl"></i>
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</div>
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<h3 class="text-xl font-semibold mb-2">Què és una funció?</h3>
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<p class="text-gray-600 mb-4">Una funció és una relació entre dos conjunts on cada element del primer conjunt (domini) està relacionat amb exactament un element del segon conjunt (codomini).</p>
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<div class="bg-blue-50 p-3 rounded">
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<p class="text-blue-800 font-mono">f: X → Y</p>
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</div>
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</div>
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<!-- Types Card -->
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<div class="bg-white p-6 rounded-lg shadow-md function-card">
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<div class="text-green-500 mb-4">
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<i class="fas fa-project-diagram text-3xl"></i>
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</div>
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<h3 class="text-xl font-semibold mb-2">Tipus de funcions</h3>
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<ul class="space-y-2 text-gray-600">
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<li><span class="font-medium">Lineals:</span> f(x) = mx + n</li>
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<li><span class="font-medium">Quadràtiques:</span> f(x) = ax² + bx + c</li>
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<li><span class="font-medium">Racionals:</span> f(x) = P(x)/Q(x)</li>
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<li><span class="font-medium">Exponencials:</span> f(x) = aˣ</li>
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</ul>
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</div>
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<!-- Characteristics Card -->
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<div class="bg-white p-6 rounded-lg shadow-md function-card">
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<div class="text-purple-500 mb-4">
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<i class="fas fa-chart-line text-3xl"></i>
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</div>
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<h3 class="text-xl font-semibold mb-2">Característiques</h3>
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<ul class="space-y-2 text-gray-600">
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<li><span class="font-medium">Domini:</span> Valors que pot prendre x</li>
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<li><span class="font-medium">Imatge:</span> Valors que pot prendre y</li>
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<li><span class="font-medium">Creixement:</span> On augmenta/disminueix</li>
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<li><span class="font-medium">Màxims i mínims:</span> Punts alts/baixos</li>
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</ul>
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</div>
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</div>
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<!-- Detailed Explanation -->
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<div class="bg-white p-6 rounded-lg shadow-md mb-8">
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<h2 class="text-2xl font-bold text-blue-600 mb-4">Anàlisi d'una Funció</h2>
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<div class="grid md:grid-cols-2 gap-6">
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<div>
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<h3 class="text-xl font-semibold mb-3 text-gray-800">1. Domini i Imatge</h3>
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<p class="text-gray-600 mb-4">El <span class="font-medium highlight px-1">domini</span> d'una funció són tots els valors reals que pot prendre la variable independent (x).</p>
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<p class="text-gray-600 mb-4">La <span class="font-medium highlight px-1">imatge</span> o recorregut són tots els valors reals que pot prendre la variable dependent (y) com a resultat de la funció.</p>
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<div class="bg-yellow-50 border-l-4 border-yellow-400 p-4 mb-4">
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<p class="text-yellow-700"><i class="fas fa-exclamation-circle mr-2"></i> <strong>Exemple:</strong> Per f(x) = x², el domini són tots els reals (ℝ) i la imatge són els reals no negatius [0, ∞).</p>
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</div>
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</div>
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<div>
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<h3 class="text-xl font-semibold mb-3 text-gray-800">2. Punts de tall</h3>
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<p class="text-gray-600 mb-4">Els <span class="font-medium highlight px-1">punts de tall amb l'eix X</span> són les arrels o zeros de la funció (f(x) = 0).</p>
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<p class="text-gray-600 mb-4">El <span class="font-medium highlight px-1">punt de tall amb l'eix Y</span> es troba avaluant f(0).</p>
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<div class="bg-green-50 border-l-4 border-green-400 p-4">
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119 |
+
<p class="text-green-700"><i class="fas fa-check-circle mr-2"></i> <strong>Exemple:</strong> Per f(x) = 2x - 4, el punt de tall amb X és (2,0) i amb Y és (0,-4).</p>
|
120 |
+
</div>
|
121 |
+
</div>
|
122 |
+
</div>
|
123 |
+
</div>
|
124 |
+
|
125 |
+
<!-- Graph Example -->
|
126 |
+
<div class="bg-white p-6 rounded-lg shadow-md">
|
127 |
+
<h2 class="text-2xl font-bold text-blue-600 mb-4">Exemple Gràfic</h2>
|
128 |
+
<div class="graph-container bg-gray-50 p-4 rounded-lg">
|
129 |
+
<canvas id="theoryGraph" height="300"></canvas>
|
130 |
+
</div>
|
131 |
+
<div class="mt-4 grid md:grid-cols-3 gap-4">
|
132 |
+
<div class="bg-blue-50 p-3 rounded">
|
133 |
+
<p class="text-sm font-medium text-blue-800">Funció: <span id="theoryFunction" class="font-mono">f(x) = x² - 4</span></p>
|
134 |
+
</div>
|
135 |
+
<div class="bg-green-50 p-3 rounded">
|
136 |
+
<p class="text-sm font-medium text-green-800">Punts de tall X: <span id="theoryRoots" class="font-mono">(-2,0), (2,0)</span></p>
|
137 |
+
</div>
|
138 |
+
<div class="bg-purple-50 p-3 rounded">
|
139 |
+
<p class="text-sm font-medium text-purple-800">Punt de tall Y: <span id="theoryYIntercept" class="font-mono">(0,-4)</span></p>
|
140 |
+
</div>
|
141 |
+
</div>
|
142 |
+
</div>
|
143 |
+
</div>
|
144 |
+
|
145 |
+
<!-- Practice Tab Content -->
|
146 |
+
<div id="practice-tab" class="tab-content hidden">
|
147 |
+
<div class="bg-white p-6 rounded-lg shadow-md mb-8">
|
148 |
+
<h2 class="text-2xl font-bold text-blue-600 mb-6">Exercicis Pràctics</h2>
|
149 |
+
|
150 |
+
<!-- Exercise 1 -->
|
151 |
+
<div class="mb-8 p-4 border border-gray-200 rounded-lg">
|
152 |
+
<div class="flex items-start mb-4">
|
153 |
+
<span class="bg-blue-100 text-blue-800 font-bold rounded-full h-8 w-8 flex items-center justify-center mr-3">1</span>
|
154 |
+
<div>
|
155 |
+
<h3 class="text-lg font-semibold">Domini d'una funció</h3>
|
156 |
+
<p class="text-gray-600">Determina el domini de la següent funció:</p>
|
157 |
+
</div>
|
158 |
+
</div>
|
159 |
+
<div class="bg-gray-50 p-4 rounded mb-4">
|
160 |
+
<p class="font-mono text-lg">f(x) = √(x + 3)</p>
|
161 |
+
</div>
|
162 |
+
<div class="flex flex-wrap gap-3 mb-4">
|
163 |
+
<button onclick="checkAnswer('a1', false)" class="px-4 py-2 bg-gray-100 hover:bg-gray-200 rounded-lg">a) ℝ</button>
|
164 |
+
<button onclick="checkAnswer('a1', false)" class="px-4 py-2 bg-gray-100 hover:bg-gray-200 rounded-lg">b) (-∞, -3]</button>
|
165 |
+
<button onclick="checkAnswer('a1', true)" class="px-4 py-2 bg-gray-100 hover:bg-gray-200 rounded-lg">c) [-3, ∞)</button>
|
166 |
+
<button onclick="checkAnswer('a1', false)" class="px-4 py-2 bg-gray-100 hover:bg-gray-200 rounded-lg">d) (0, ∞)</button>
|
167 |
+
</div>
|
168 |
+
<div id="feedback1" class="hidden p-3 rounded"></div>
|
169 |
+
</div>
|
170 |
+
|
171 |
+
<!-- Exercise 2 -->
|
172 |
+
<div class="mb-8 p-4 border border-gray-200 rounded-lg">
|
173 |
+
<div class="flex items-start mb-4">
|
174 |
+
<span class="bg-blue-100 text-blue-800 font-bold rounded-full h-8 w-8 flex items-center justify-center mr-3">2</span>
|
175 |
+
<div>
|
176 |
+
<h3 class="text-lg font-semibold">Punts de tall</h3>
|
177 |
+
<p class="text-gray-600">Troba els punts de tall amb els eixos de la funció:</p>
|
178 |
+
</div>
|
179 |
+
</div>
|
180 |
+
<div class="bg-gray-50 p-4 rounded mb-4">
|
181 |
+
<p class="font-mono text-lg">f(x) = x² - 5x + 6</p>
|
182 |
+
</div>
|
183 |
+
<div class="grid md:grid-cols-2 gap-4 mb-4">
|
184 |
+
<div>
|
185 |
+
<label class="block text-gray-700 mb-2">Punts de tall amb X:</label>
|
186 |
+
<input type="text" id="rootsInput" class="w-full px-3 py-2 border rounded-lg" placeholder="Ex: (2,0), (3,0)">
|
187 |
+
</div>
|
188 |
+
<div>
|
189 |
+
<label class="block text-gray-700 mb-2">Punt de tall amb Y:</label>
|
190 |
+
<input type="text" id="yInterceptInput" class="w-full px-3 py-2 border rounded-lg" placeholder="Ex: (0,6)">
|
191 |
+
</div>
|
192 |
+
</div>
|
193 |
+
<button onclick="checkExercise2()" class="px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700">Comprova</button>
|
194 |
+
<div id="feedback2" class="hidden mt-3 p-3 rounded"></div>
|
195 |
+
</div>
|
196 |
+
|
197 |
+
<!-- Exercise 3 -->
|
198 |
+
<div class="p-4 border border-gray-200 rounded-lg">
|
199 |
+
<div class="flex items-start mb-4">
|
200 |
+
<span class="bg-blue-100 text-blue-800 font-bold rounded-full h-8 w-8 flex items-center justify-center mr-3">3</span>
|
201 |
+
<div>
|
202 |
+
<h3 class="text-lg font-semibold">Gràfica d'una funció</h3>
|
203 |
+
<p class="text-gray-600">Observa la gràfica i respon:</p>
|
204 |
+
</div>
|
205 |
+
</div>
|
206 |
+
<div class="graph-container bg-gray-50 p-4 rounded mb-4">
|
207 |
+
<canvas id="practiceGraph" height="250"></canvas>
|
208 |
+
</div>
|
209 |
+
<div class="space-y-3 mb-4">
|
210 |
+
<div class="flex items-center">
|
211 |
+
<input type="radio" id="q3a" name="practiceQuestion" value="a" class="mr-2">
|
212 |
+
<label for="q3a">La funció és creixent en tot el seu domini</label>
|
213 |
+
</div>
|
214 |
+
<div class="flex items-center">
|
215 |
+
<input type="radio" id="q3b" name="practiceQuestion" value="b" class="mr-2">
|
216 |
+
<label for="q3b">La funció té un màxim en x=0</label>
|
217 |
+
</div>
|
218 |
+
<div class="flex items-center">
|
219 |
+
<input type="radio" id="q3c" name="practiceQuestion" value="c" class="mr-2">
|
220 |
+
<label for="q3c">El domini de la funció és (0, ∞)</label>
|
221 |
+
</div>
|
222 |
+
<div class="flex items-center">
|
223 |
+
<input type="radio" id="q3d" name="practiceQuestion" value="d" class="mr-2">
|
224 |
+
<label for="q3d">La funció és simètrica respecte l'origen</label>
|
225 |
+
</div>
|
226 |
+
</div>
|
227 |
+
<button onclick="checkExercise3()" class="px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700">Comprova</button>
|
228 |
+
<div id="feedback3" class="hidden mt-3 p-3 rounded"></div>
|
229 |
+
</div>
|
230 |
+
</div>
|
231 |
+
</div>
|
232 |
+
|
233 |
+
<!-- Interactive Tab Content -->
|
234 |
+
<div id="interactive-tab" class="tab-content hidden">
|
235 |
+
<div class="bg-white p-6 rounded-lg shadow-md mb-8">
|
236 |
+
<h2 class="text-2xl font-bold text-blue-600 mb-6">Explorador de Funcions</h2>
|
237 |
+
|
238 |
+
<div class="grid md:grid-cols-3 gap-6 mb-6">
|
239 |
+
<div class="md:col-span-2">
|
240 |
+
<div class="graph-container bg-gray-50 p-4 rounded-lg mb-4">
|
241 |
+
<canvas id="interactiveGraph" height="350"></canvas>
|
242 |
+
</div>
|
243 |
+
</div>
|
244 |
+
|
245 |
+
<div>
|
246 |
+
<div class="bg-gray-50 p-4 rounded-lg mb-4">
|
247 |
+
<h3 class="text-lg font-semibold mb-3">Configura la funció</h3>
|
248 |
+
|
249 |
+
<div class="mb-4">
|
250 |
+
<label class="block text-gray-700 mb-2">Tipus de funció:</label>
|
251 |
+
<select id="functionType" onchange="updateFunctionType()" class="w-full px-3 py-2 border rounded-lg">
|
252 |
+
<option value="linear">Lineal</option>
|
253 |
+
<option value="quadratic">Quadràtica</option>
|
254 |
+
<option value="rational">Racional</option>
|
255 |
+
<option value="exponential">Exponencial</option>
|
256 |
+
</select>
|
257 |
+
</div>
|
258 |
+
|
259 |
+
<div id="linearParams">
|
260 |
+
<div class="mb-3">
|
261 |
+
<label class="block text-gray-700 mb-1">Pendent (m):</label>
|
262 |
+
<input type="range" id="linearSlope" min="-5" max="5" step="0.5" value="1" oninput="updateLinearFunction()" class="w-full">
|
263 |
+
<span id="slopeValue" class="text-sm text-gray-600">1</span>
|
264 |
+
</div>
|
265 |
+
<div>
|
266 |
+
<label class="block text-gray-700 mb-1">Ordenada a l'origen (n):</label>
|
267 |
+
<input type="range" id="linearIntercept" min="-5" max="5" step="0.5" value="0" oninput="updateLinearFunction()" class="w-full">
|
268 |
+
<span id="interceptValue" class="text-sm text-gray-600">0</span>
|
269 |
+
</div>
|
270 |
+
</div>
|
271 |
+
|
272 |
+
<div id="quadraticParams" class="hidden">
|
273 |
+
<div class="mb-3">
|
274 |
+
<label class="block text-gray-700 mb-1">Coeficient a:</label>
|
275 |
+
<input type="range" id="quadA" min="-2" max="2" step="0.1" value="1" oninput="updateQuadraticFunction()" class="w-full">
|
276 |
+
<span id="quadAValue" class="text-sm text-gray-600">1</span>
|
277 |
+
</div>
|
278 |
+
<div class="mb-3">
|
279 |
+
<label class="block text-gray-700 mb-1">Coeficient b:</label>
|
280 |
+
<input type="range" id="quadB" min="-5" max="5" step="0.5" value="0" oninput="updateQuadraticFunction()" class="w-full">
|
281 |
+
<span id="quadBValue" class="text-sm text-gray-600">0</span>
|
282 |
+
</div>
|
283 |
+
<div>
|
284 |
+
<label class="block text-gray-700 mb-1">Coeficient c:</label>
|
285 |
+
<input type="range" id="quadC" min="-5" max="5" step="0.5" value="0" oninput="updateQuadraticFunction()" class="w-full">
|
286 |
+
<span id="quadCValue" class="text-sm text-gray-600">0</span>
|
287 |
+
</div>
|
288 |
+
</div>
|
289 |
+
</div>
|
290 |
+
|
291 |
+
<div class="bg-blue-50 p-4 rounded-lg">
|
292 |
+
<h3 class="text-lg font-semibold mb-3">Característiques</h3>
|
293 |
+
<div class="space-y-2">
|
294 |
+
<p><span class="font-medium">Funció:</span> <span id="currentFunction" class="font-mono">f(x) = x</span></p>
|
295 |
+
<p><span class="font-medium">Domini:</span> <span id="domainValue">ℝ</span></p>
|
296 |
+
<p><span class="font-medium">Imatge:</span> <span id="rangeValue">ℝ</span></p>
|
297 |
+
<p><span class="font-medium">Punts de tall:</span> <span id="interceptsValue">X: (0,0), Y: (0,0)</span></p>
|
298 |
+
<p><span class="font-medium">Creixement:</span> <span id="growthValue">Creixent en tot el domini</span></p>
|
299 |
+
</div>
|
300 |
+
</div>
|
301 |
+
</div>
|
302 |
+
</div>
|
303 |
+
|
304 |
+
<div class="bg-white border border-gray-200 rounded-lg p-4">
|
305 |
+
<h3 class="text-lg font-semibold mb-3">Desafí</h3>
|
306 |
+
<p class="text-gray-600 mb-4">Configura una funció que compleixi les següents condicions:</p>
|
307 |
+
<ul class="list-disc pl-5 mb-4 text-gray-600">
|
308 |
+
<li>Punt de tall amb Y en (0,2)</li>
|
309 |
+
<li>Creixent en tot el seu domini</li>
|
310 |
+
<li>Punt de tall amb X en (-2,0)</li>
|
311 |
+
</ul>
|
312 |
+
<button onclick="checkChallenge()" class="px-4 py-2 bg-green-600 text-white rounded-lg hover:bg-green-700">Comprova el meu desafi</button>
|
313 |
+
<div id="challengeFeedback" class="hidden mt-3 p-3 rounded"></div>
|
314 |
+
</div>
|
315 |
+
</div>
|
316 |
+
</div>
|
317 |
+
</div>
|
318 |
+
|
319 |
+
<script>
|
320 |
+
// Initialize charts
|
321 |
+
document.addEventListener('DOMContentLoaded', function() {
|
322 |
+
// Theory Graph
|
323 |
+
const theoryCtx = document.getElementById('theoryGraph').getContext('2d');
|
324 |
+
const theoryChart = new Chart(theoryCtx, {
|
325 |
+
type: 'line',
|
326 |
+
data: {
|
327 |
+
labels: Array.from({length: 21}, (_, i) => i - 10),
|
328 |
+
datasets: [{
|
329 |
+
label: 'f(x) = x² - 4',
|
330 |
+
data: Array.from({length: 21}, (_, i) => Math.pow(i - 10, 2) - 4),
|
331 |
+
borderColor: 'rgb(59, 130, 246)',
|
332 |
+
backgroundColor: 'rgba(59, 130, 246, 0.1)',
|
333 |
+
borderWidth: 2,
|
334 |
+
fill: true,
|
335 |
+
tension: 0.1
|
336 |
+
}]
|
337 |
+
},
|
338 |
+
options: getChartOptions()
|
339 |
+
});
|
340 |
+
|
341 |
+
// Practice Graph
|
342 |
+
const practiceCtx = document.getElementById('practiceGraph').getContext('2d');
|
343 |
+
const practiceChart = new Chart(practiceCtx, {
|
344 |
+
type: 'line',
|
345 |
+
data: {
|
346 |
+
labels: Array.from({length: 21}, (_, i) => i - 10),
|
347 |
+
datasets: [{
|
348 |
+
label: 'f(x) = -x² + 4',
|
349 |
+
data: Array.from({length: 21}, (_, i) => -Math.pow(i - 10, 2) + 4),
|
350 |
+
borderColor: 'rgb(16, 185, 129)',
|
351 |
+
backgroundColor: 'rgba(16, 185, 129, 0.1)',
|
352 |
+
borderWidth: 2,
|
353 |
+
fill: true
|
354 |
+
}]
|
355 |
+
},
|
356 |
+
options: getChartOptions()
|
357 |
+
});
|
358 |
+
|
359 |
+
// Interactive Graph
|
360 |
+
const interactiveCtx = document.getElementById('interactiveGraph').getContext('2d');
|
361 |
+
window.interactiveChart = new Chart(interactiveCtx, {
|
362 |
+
type: 'line',
|
363 |
+
data: {
|
364 |
+
labels: Array.from({length: 21}, (_, i) => i - 10),
|
365 |
+
datasets: [{
|
366 |
+
label: 'f(x) = x',
|
367 |
+
data: Array.from({length: 21}, (_, i) => (i - 10)),
|
368 |
+
borderColor: 'rgb(139, 92, 246)',
|
369 |
+
backgroundColor: 'rgba(139, 92, 246, 0.1)',
|
370 |
+
borderWidth: 2,
|
371 |
+
fill: true,
|
372 |
+
tension: 0.1
|
373 |
+
}]
|
374 |
+
},
|
375 |
+
options: getChartOptions()
|
376 |
+
});
|
377 |
+
|
378 |
+
// Initialize interactive function controls
|
379 |
+
updateFunctionType();
|
380 |
+
});
|
381 |
+
|
382 |
+
function getChartOptions() {
|
383 |
+
return {
|
384 |
+
responsive: true,
|
385 |
+
plugins: {
|
386 |
+
legend: {
|
387 |
+
display: false
|
388 |
+
},
|
389 |
+
tooltip: {
|
390 |
+
mode: 'index',
|
391 |
+
intersect: false
|
392 |
+
}
|
393 |
+
},
|
394 |
+
scales: {
|
395 |
+
x: {
|
396 |
+
grid: {
|
397 |
+
color: 'rgba(0, 0, 0, 0.05)'
|
398 |
+
},
|
399 |
+
title: {
|
400 |
+
display: true,
|
401 |
+
text: 'x'
|
402 |
+
}
|
403 |
+
},
|
404 |
+
y: {
|
405 |
+
grid: {
|
406 |
+
color: 'rgba(0, 0, 0, 0.05)'
|
407 |
+
},
|
408 |
+
title: {
|
409 |
+
display: true,
|
410 |
+
text: 'f(x)'
|
411 |
+
}
|
412 |
+
}
|
413 |
+
},
|
414 |
+
elements: {
|
415 |
+
point: {
|
416 |
+
radius: 0
|
417 |
+
}
|
418 |
+
}
|
419 |
+
};
|
420 |
+
}
|
421 |
+
|
422 |
+
// Tab switching
|
423 |
+
function changeTab(tabName) {
|
424 |
+
// Update tab buttons
|
425 |
+
document.querySelectorAll('[onclick^="changeTab"]').forEach(btn => {
|
426 |
+
btn.classList.remove('tab-active', 'text-blue-600');
|
427 |
+
btn.classList.add('text-gray-500');
|
428 |
+
});
|
429 |
+
event.currentTarget.classList.add('tab-active', 'text-blue-600');
|
430 |
+
event.currentTarget.classList.remove('text-gray-500');
|
431 |
+
|
432 |
+
// Update tab content
|
433 |
+
document.querySelectorAll('.tab-content').forEach(tab => {
|
434 |
+
tab.classList.add('hidden');
|
435 |
+
});
|
436 |
+
document.getElementById(`${tabName}-tab`).classList.remove('hidden');
|
437 |
+
}
|
438 |
+
|
439 |
+
// Practice exercises
|
440 |
+
function checkAnswer(exerciseId, isCorrect) {
|
441 |
+
const feedback = document.getElementById(`feedback${exerciseId.slice(1)}`);
|
442 |
+
feedback.classList.remove('hidden', 'bg-red-100', 'border-red-400', 'text-red-700',
|
443 |
+
'bg-green-100', 'border-green-400', 'text-green-700');
|
444 |
+
|
445 |
+
if (isCorrect) {
|
446 |
+
feedback.classList.add('bg-green-100', 'border-green-400', 'text-green-700');
|
447 |
+
feedback.innerHTML = '<i class="fas fa-check-circle mr-2"></i> Correcte! Molt bé.';
|
448 |
+
} else {
|
449 |
+
feedback.classList.add('bg-red-100', 'border-red-400', 'text-red-700');
|
450 |
+
feedback.innerHTML = '<i class="fas fa-times-circle mr-2"></i> Incorrecte. Torna a intentar-ho.';
|
451 |
+
}
|
452 |
+
}
|
453 |
+
|
454 |
+
function checkExercise2() {
|
455 |
+
const rootsInput = document.getElementById('rootsInput').value.trim();
|
456 |
+
const yInterceptInput = document.getElementById('yInterceptInput').value.trim();
|
457 |
+
const feedback = document.getElementById('feedback2');
|
458 |
+
feedback.classList.remove('hidden', 'bg-red-100', 'border-red-400', 'text-red-700',
|
459 |
+
'bg-green-100', 'border-green-400', 'text-green-700');
|
460 |
+
|
461 |
+
// Check answers (simplified validation for demo)
|
462 |
+
const rootsCorrect = rootsInput.includes('2,0') && rootsInput.includes('3,0');
|
463 |
+
const yInterceptCorrect = yInterceptInput.includes('0,6');
|
464 |
+
|
465 |
+
if (rootsCorrect && yInterceptCorrect) {
|
466 |
+
feedback.classList.add('bg-green-100', 'border-green-400', 'text-green-700');
|
467 |
+
feedback.innerHTML = '<i class="fas fa-check-circle mr-2"></i> Tot correcte! Excel·lent treball.';
|
468 |
+
} else {
|
469 |
+
feedback.classList.add('bg-red-100', 'border-red-400', 'text-red-700');
|
470 |
+
let message = '<i class="fas fa-times-circle mr-2"></i> Alguna resposta incorrecta. ';
|
471 |
+
|
472 |
+
if (!rootsCorrect && !yInterceptCorrect) {
|
473 |
+
message += 'Els punts de tall amb X són (2,0) i (3,0). El punt de tall amb Y és (0,6).';
|
474 |
+
} else if (!rootsCorrect) {
|
475 |
+
message += 'Els punts de tall amb X no són correctes. Haurien de ser (2,0) i (3,0).';
|
476 |
+
} else {
|
477 |
+
message += 'El punt de tall amb Y no és correcte. Hauria de ser (0,6).';
|
478 |
+
}
|
479 |
+
|
480 |
+
feedback.innerHTML = message;
|
481 |
+
}
|
482 |
+
}
|
483 |
+
|
484 |
+
function checkExercise3() {
|
485 |
+
const selectedOption = document.querySelector('input[name="practiceQuestion"]:checked');
|
486 |
+
const feedback = document.getElementById('feedback3');
|
487 |
+
feedback.classList.remove('hidden', 'bg-red-100', 'border-red-400', 'text-red-700',
|
488 |
+
'bg-green-100', 'border-green-400', 'text-green-700');
|
489 |
+
|
490 |
+
if (!selectedOption) {
|
491 |
+
feedback.classList.add('bg-yellow-100', 'border-yellow-400', 'text-yellow-700');
|
492 |
+
feedback.innerHTML = '<i class="fas fa-exclamation-circle mr-2"></i> Selecciona una resposta abans de comprovar.';
|
493 |
+
return;
|
494 |
+
}
|
495 |
+
|
496 |
+
if (selectedOption.value === 'b') {
|
497 |
+
feedback.classList.add('bg-green-100', 'border-green-400', 'text-green-700');
|
498 |
+
feedback.innerHTML = '<i class="fas fa-check-circle mr-2"></i> Correcte! La funció té un màxim en x=0.';
|
499 |
+
} else {
|
500 |
+
feedback.classList.add('bg-red-100', 'border-red-400', 'text-red-700');
|
501 |
+
feedback.innerHTML = '<i class="fas fa-times-circle mr-2"></i> Incorrecte. La resposta correcta és "La funció té un màxim en x=0".';
|
502 |
+
}
|
503 |
+
}
|
504 |
+
|
505 |
+
// Interactive function explorer
|
506 |
+
function updateFunctionType() {
|
507 |
+
const functionType = document.getElementById('functionType').value;
|
508 |
+
|
509 |
+
// Hide all parameter sections
|
510 |
+
document.querySelectorAll('[id$="Params"]').forEach(el => {
|
511 |
+
el.classList.add('hidden');
|
512 |
+
});
|
513 |
+
|
514 |
+
// Show the selected one
|
515 |
+
document.getElementById(`${functionType}Params`).classList.remove('hidden');
|
516 |
+
|
517 |
+
// Update the function
|
518 |
+
if (functionType === 'linear') {
|
519 |
+
updateLinearFunction();
|
520 |
+
} else if (functionType === 'quadratic') {
|
521 |
+
updateQuadraticFunction();
|
522 |
+
}
|
523 |
+
}
|
524 |
+
|
525 |
+
function updateLinearFunction() {
|
526 |
+
const slope = parseFloat(document.getElementById('linearSlope').value);
|
527 |
+
const intercept = parseFloat(document.getElementById('linearIntercept').value);
|
528 |
+
|
529 |
+
// Update displayed values
|
530 |
+
document.getElementById('slopeValue').textContent = slope;
|
531 |
+
document.getElementById('interceptValue').textContent = intercept;
|
532 |
+
|
533 |
+
// Update function display
|
534 |
+
let functionText = 'f(x) = ';
|
535 |
+
if (slope !== 0) {
|
536 |
+
functionText += (slope === 1) ? 'x' : (slope === -1) ? '-x' : `${slope}x`;
|
537 |
+
}
|
538 |
+
|
539 |
+
if (intercept !== 0) {
|
540 |
+
if (slope !== 0) {
|
541 |
+
functionText += (intercept > 0) ? ` + ${intercept}` : ` - ${Math.abs(intercept)}`;
|
542 |
+
} else {
|
543 |
+
functionText += intercept;
|
544 |
+
}
|
545 |
+
} else if (slope === 0) {
|
546 |
+
functionText += '0';
|
547 |
+
}
|
548 |
+
|
549 |
+
document.getElementById('currentFunction').textContent = functionText;
|
550 |
+
|
551 |
+
// Update chart
|
552 |
+
const data = Array.from({length: 21}, (_, i) => slope * (i - 10) + intercept);
|
553 |
+
updateInteractiveChart(data, functionText);
|
554 |
+
|
555 |
+
// Update characteristics
|
556 |
+
document.getElementById('domainValue').textContent = 'ℝ';
|
557 |
+
document.getElementById('rangeValue').textContent = 'ℝ';
|
558 |
+
|
559 |
+
// Calculate intercepts
|
560 |
+
let xIntercepts = [];
|
561 |
+
if (slope !== 0) {
|
562 |
+
const xIntercept = -intercept / slope;
|
563 |
+
xIntercepts.push(`(${xIntercept.toFixed(1)},0)`);
|
564 |
+
}
|
565 |
+
|
566 |
+
document.getElementById('interceptsValue').textContent =
|
567 |
+
`X: ${xIntercepts.join(', ') || 'Cap'}, Y: (0,${intercept})`;
|
568 |
+
|
569 |
+
document.getElementById('growthValue').textContent =
|
570 |
+
slope > 0 ? 'Creixent en tot el domini' : (slope < 0 ? 'Decreixent en tot el domini' : 'Constant');
|
571 |
+
}
|
572 |
+
|
573 |
+
function updateQuadraticFunction() {
|
574 |
+
const a = parseFloat(document.getElementById('quadA').value);
|
575 |
+
const b = parseFloat(document.getElementById('quadB').value);
|
576 |
+
const c = parseFloat(document.getElementById('quadC').value);
|
577 |
+
|
578 |
+
// Update displayed values
|
579 |
+
document.getElementById('quadAValue').textContent = a;
|
580 |
+
document.getElementById('quadBValue').textContent = b;
|
581 |
+
document.getElementById('quadCValue').textContent = c;
|
582 |
+
|
583 |
+
// Update function display
|
584 |
+
let functionText = 'f(x) = ';
|
585 |
+
if (a !== 0) {
|
586 |
+
functionText += (a === 1) ? 'x²' : (a === -1) ? '-x²' : `${a}x²`;
|
587 |
+
}
|
588 |
+
|
589 |
+
if (b !== 0) {
|
590 |
+
if (a !== 0) {
|
591 |
+
functionText += (b > 0) ? ` + ${b}x` : ` - ${Math.abs(b)}x`;
|
592 |
+
} else {
|
593 |
+
functionText += (b === 1) ? 'x' : (b === -1) ? '-x' : `${b}x`;
|
594 |
+
}
|
595 |
+
}
|
596 |
+
|
597 |
+
if (c !== 0) {
|
598 |
+
if (a !== 0 || b !== 0) {
|
599 |
+
functionText += (c > 0) ? ` + ${c}` : ` - ${Math.abs(c)}`;
|
600 |
+
} else {
|
601 |
+
functionText += c;
|
602 |
+
}
|
603 |
+
} else if (a === 0 && b === 0) {
|
604 |
+
functionText += '0';
|
605 |
+
}
|
606 |
+
|
607 |
+
document.getElementById('currentFunction').textContent = functionText;
|
608 |
+
|
609 |
+
// Update chart
|
610 |
+
const data = Array.from({length: 21}, (_, i) => {
|
611 |
+
const x = i - 10;
|
612 |
+
return a * x * x + b * x + c;
|
613 |
+
});
|
614 |
+
updateInteractiveChart(data, functionText);
|
615 |
+
|
616 |
+
// Update characteristics
|
617 |
+
document.getElementById('domainValue').textContent = 'ℝ';
|
618 |
+
|
619 |
+
// Calculate range
|
620 |
+
let rangeText = 'ℝ';
|
621 |
+
if (a !== 0) {
|
622 |
+
const vertexY = c - (b * b) / (4 * a);
|
623 |
+
rangeText = a > 0 ? `[${vertexY.toFixed(1)}, ∞)` : `(-∞, ${vertexY.toFixed(1)}]`;
|
624 |
+
}
|
625 |
+
document.getElementById('rangeValue').textContent = rangeText;
|
626 |
+
|
627 |
+
// Calculate intercepts
|
628 |
+
let xIntercepts = [];
|
629 |
+
if (a !== 0) {
|
630 |
+
const discriminant = b * b - 4 * a * c;
|
631 |
+
if (discriminant >= 0) {
|
632 |
+
const sqrtDiscriminant = Math.sqrt(discriminant);
|
633 |
+
const x1 = (-b + sqrtDiscriminant) / (2 * a);
|
634 |
+
const x2 = (-b - sqrtDiscriminant) / (2 * a);
|
635 |
+
|
636 |
+
xIntercepts.push(`(${x1.toFixed(1)},0)`);
|
637 |
+
if (discriminant > 0) {
|
638 |
+
xIntercepts.push(`(${x2.toFixed(1)},0)`);
|
639 |
+
}
|
640 |
+
}
|
641 |
+
} else if (b !== 0) {
|
642 |
+
// Linear case
|
643 |
+
const xIntercept = -c / b;
|
644 |
+
xIntercepts.push(`(${xIntercept.toFixed(1)},0)`);
|
645 |
+
} else if (c === 0) {
|
646 |
+
// Zero function
|
647 |
+
xIntercepts.push('Tots els punts de X');
|
648 |
+
}
|
649 |
+
|
650 |
+
document.getElementById('interceptsValue').textContent =
|
651 |
+
`X: ${xIntercepts.join(', ') || 'Cap'}, Y: (0,${c})`;
|
652 |
+
|
653 |
+
// Calculate growth
|
654 |
+
let growthText = '';
|
655 |
+
if (a > 0) {
|
656 |
+
const vertexX = -b / (2 * a);
|
657 |
+
growthText = `Decreixent en (-∞, ${vertexX.toFixed(1)}), Creixent en (${vertexX.toFixed(1)}, ∞)`;
|
658 |
+
} else if (a < 0) {
|
659 |
+
const vertexX = -b / (2 * a);
|
660 |
+
growthText = `Creixent en (-∞, ${vertexX.toFixed(1)}), Decreixent en (${vertexX.toFixed(1)}, ∞)`;
|
661 |
+
} else if (b !== 0) {
|
662 |
+
growthText = b > 0 ? 'Creixent en tot el domini' : 'Decreixent en tot el domini';
|
663 |
+
} else {
|
664 |
+
growthText = 'Constant';
|
665 |
+
}
|
666 |
+
|
667 |
+
document.getElementById('growthValue').textContent = growthText;
|
668 |
+
}
|
669 |
+
|
670 |
+
function updateInteractiveChart(data, label) {
|
671 |
+
window.interactiveChart.data.datasets[0].data = data;
|
672 |
+
window.interactiveChart.data.datasets[0].label = label;
|
673 |
+
window.interactiveChart.update();
|
674 |
+
}
|
675 |
+
|
676 |
+
function checkChallenge() {
|
677 |
+
const functionType = document.getElementById('functionType').value;
|
678 |
+
const feedback = document.getElementById('challengeFeedback');
|
679 |
+
feedback.classList.remove('hidden', 'bg-red-100', 'border-red-400', 'text-red-700',
|
680 |
+
'bg-green-100', 'border-green-400', 'text-green-700');
|
681 |
+
|
682 |
+
if (functionType !== 'linear') {
|
683 |
+
feedback.classList.add('bg-red-100', 'border-red-400', 'text-red-700');
|
684 |
+
feedback.innerHTML = '<i class="fas fa-times-circle mr-2"></i> La funció hauria de ser lineal per complir totes les condicions.';
|
685 |
+
return;
|
686 |
+
}
|
687 |
+
|
688 |
+
const slope = parseFloat(document.getElementById('linearSlope').value);
|
689 |
+
const intercept = parseFloat(document.getElementById('linearIntercept').value);
|
690 |
+
|
691 |
+
// Check conditions
|
692 |
+
const yInterceptOK = Math.abs(intercept - 2) < 0.1;
|
693 |
+
const growingOK = slope > 0;
|
694 |
+
|
695 |
+
// Calculate x-intercept
|
696 |
+
let xInterceptOK = false;
|
697 |
+
if (slope !== 0) {
|
698 |
+
const xIntercept = -intercept / slope;
|
699 |
+
xInterceptOK = Math.abs(xIntercept - (-2)) < 0.1;
|
700 |
+
}
|
701 |
+
|
702 |
+
if (yInterceptOK && growingOK && xInterceptOK) {
|
703 |
+
feedback.classList.add('bg-green-100', 'border-green-400', 'text-green-700');
|
704 |
+
feedback.innerHTML = '<i class="fas fa-check-circle mr-2"></i> Perfecte! Has trobat la funció f(x) = x + 2 que compleix totes les condicions.';
|
705 |
+
} else {
|
706 |
+
feedback.classList.add('bg-red-100', 'border-red-400', 'text-red-700');
|
707 |
+
let message = '<i class="fas fa-times-circle mr-2"></i> Encara no compleixes totes les condicions:';
|
708 |
+
|
709 |
+
if (!yInterceptOK) {
|
710 |
+
message += '<br>- El punt de tall amb Y ha de ser (0,2)';
|
711 |
+
}
|
712 |
+
if (!growingOK) {
|
713 |
+
message += '<br>- La funció ha de ser creixent (pendent positiu)';
|
714 |
+
}
|
715 |
+
if (!xInterceptOK) {
|
716 |
+
message += '<br>- Falta el punt de tall amb X en (-2,0)';
|
717 |
+
}
|
718 |
+
|
719 |
+
feedback.innerHTML = message + '<br><br>Pista: Prova amb una funció lineal amb pendent 1 i ordenada a l\'origen 2.';
|
720 |
+
}
|
721 |
+
}
|
722 |
+
</script>
|
723 |
+
<p style="border-radius: 8px; text-align: center; font-size: 12px; color: #fff; margin-top: 16px;position: fixed; left: 8px; bottom: 8px; z-index: 10; background: rgba(0, 0, 0, 0.8); padding: 4px 8px;">Made with <img src="https://enzostvs-deepsite.hf.space/logo.svg" alt="DeepSite Logo" style="width: 16px; height: 16px; vertical-align: middle;display:inline-block;margin-right:3px;filter:brightness(0) invert(1);"><a href="https://enzostvs-deepsite.hf.space" style="color: #fff;text-decoration: underline;" target="_blank" >DeepSite</a> - 🧬 <a href="https://enzostvs-deepsite.hf.space?remix=Rubenhugging/caractfuncions" style="color: #fff;text-decoration: underline;" target="_blank" >Remix</a></p></body>
|
724 |
+
</html>
|