Quiz — Copie de D S 2 -3-14.15 M.pdf

Question 1 sur 5 10:00

[{"id":338,"question":"Quelle est la solution de l'équation 3x - 5 = 7 ?","option_a":"x = 4","option_b":"x = 12","option_c":"x = 2","option_d":"x = -4","option_e":"","option_f":"","bonne_reponse":"A","explication":"Pour résoudre 3x - 5 = 7, ajoutez 5 des deux côtés : 3x = 12, puis divisez par 3 : x = 4.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":339,"question":"La représentation graphique d'une fonction affine est toujours :","option_a":"Une droite","option_b":"Une parabole","option_c":"Un cercle","option_d":"Une hyperbole","option_e":"","option_f":"","bonne_reponse":"A","explication":"Une fonction affine s'écrit f(x) = ax + b, sa représentation graphique est une droite.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":340,"question":"Dans un triangle rectangle, si l'hypoténuse mesure 10 cm et un côté mesure 6 cm, quelle est la longueur du troisième côté ?","option_a":"8 cm","option_b":"4 cm","option_c":"12 cm","option_d":"√(10² + 6²) cm","option_e":"","option_f":"","bonne_reponse":"A","explication":"D'après le théorème de Pythagore : 6² + x² = 10² → 36 + x² = 100 → x² = 64 → x = 8 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":341,"question":"Quelle est la pente de la droite d'équation y = 2x - 3 ?","option_a":"2","option_b":"-3","option_c":"0","option_d":"1","option_e":"","option_f":"","bonne_reponse":"A","explication":"Dans l'équation y = ax + b, a représente la pente. Ici, a = 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":342,"question":"Si f(x) = x² - 4x + 3, quelle est l'image de 2 par f ?","option_a":"-1","option_b":"3","option_c":"1","option_d":"-3","option_e":"","option_f":"","bonne_reponse":"A","explication":"Calculez f(2) = 2² - 4×2 + 3 = 4 - 8 + 3 = -1.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]