Quiz interactif : Maîtrisez le chapitre 11 en mathématiques !

Question 1 sur 10 10:00

[{"id":59107,"question":"Quelle est la solution de l'équation 3x - 5 = 16 ?","option_a":"x = 7","option_b":"x = 5","option_c":"x = 10","option_d":"x = -3","option_e":"","option_f":"","bonne_reponse":"B","explication":"Pour résoudre 3x - 5 = 16, ajoutez 5 des deux côtés : 3x = 21. Divisez ensuite par 3 : x = 7.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":59108,"question":"Une fonction affine est toujours représentée par une droite.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Une fonction affine est de la forme f(x) = ax + b, et sa représentation graphique est toujours une droite.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":59109,"question":"Quelle est la forme factorisée de x² - 9 ?","option_a":"(x - 3)(x + 3)","option_b":"(x - 9)(x + 1)","option_c":"(x - 3)²","option_d":"(x + 3)²","option_e":"","option_f":"","bonne_reponse":"A","explication":"x² - 9 est une différence de carrés : (x - 3)(x + 3).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":59110,"question":"Si f(x) = 2x + 1, quelle est l'image de 4 par f ?","option_a":"f(4) = 8","option_b":"f(4) = 9","option_c":"f(4) = 7","option_d":"f(4) = 5","option_e":"","option_f":"","bonne_reponse":"B","explication":"Remplacez x par 4 dans f(x) = 2x + 1 : f(4) = 2*4 + 1 = 9.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":59111,"question":"L'inéquation 2x + 3 \u003E 7 a pour solution x \u003E 2.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Résolvez 2x + 3 \u003E 7 : soustrayez 3 : 2x \u003E 4. Divisez par 2 : x \u003E 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":59112,"question":"Quelle est la pente de la droite d'équation y = -3x + 5 ?","option_a":"5","option_b":"-3","option_c":"3","option_d":"-5","option_e":"","option_f":"","bonne_reponse":"B","explication":"Dans une équation de droite y = ax + b, a représente la pente. Ici, a = -3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":59113,"question":"Résolvez l'inéquation -x + 4 ≤ 2.","option_a":"x ≥ 2","option_b":"x ≤ 2","option_c":"x ≥ -2","option_d":"x ≤ -2","option_e":"","option_f":"","bonne_reponse":"A","explication":"Soustrayez 4 : -x ≤ -2. Multipliez par -1 (inversion du sens) : x ≥ 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":59114,"question":"La fonction f(x) = x² est-elle une fonction affine ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Une fonction affine est de la forme ax + b. f(x) = x² est une fonction polynôme de degré 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":59115,"question":"Quelle est la solution de l'équation 5(x - 2) = 3x + 10 ?","option_a":"x = 10","option_b":"x = 5","option_c":"x = 0","option_d":"x = -5","option_e":"","option_f":"","bonne_reponse":"A","explication":"Développez : 5x - 10 = 3x + 10. Soustrayez 3x : 2x - 10 = 10. Ajoutez 10 : 2x = 20. Divisez par 2 : x = 10.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":59116,"question":"Si une droite a pour équation y = 4, quelle est sa pente ?","option_a":"4","option_b":"0","option_c":"1","option_d":"-4","option_e":"","option_f":"","bonne_reponse":"B","explication":"Une droite horizontale (y = constante) a une pente de 0.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]