Quiz : Maîtrisez les bases des mathématiques en 1ère année secondaire

Question 1 sur 5 10:00

[{"id":1100,"question":"Quelle est la solution de l'équation 3x - 5 = 10 ?","option_a":"x = 5","option_b":"x = 15\/3","option_c":"x = 5\/3","option_d":"x = 15","option_e":"","option_f":"","bonne_reponse":"A","explication":"Pour résoudre 3x - 5 = 10, on ajoute d'abord 5 aux deux côtés : 3x = 15. Ensuite, on divise par 3 : x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":1101,"question":"Si f(x) = 2x + 1, quelle est l'image de 3 par f ?","option_a":"7","option_b":"6","option_c":"5","option_d":"8","option_e":"","option_f":"","bonne_reponse":"A","explication":"L'image de 3 par f est f(3) = 2*3 + 1 = 7.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":1102,"question":"Dans un triangle rectangle, si les côtés de l'angle droit mesurent 3 cm et 4 cm, quelle est la longueur de l'hypoténuse ?","option_a":"5 cm","option_b":"6 cm","option_c":"7 cm","option_d":"8 cm","option_e":"","option_f":"","bonne_reponse":"A","explication":"D'après le théorème de Pythagore : hypoténuse² = 3² + 4² = 9 + 16 = 25, donc hypoténuse = 5 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":1103,"question":"Quelle est la valeur de x dans l'équation 2(x - 4) = 10 ?","option_a":"x = 9","option_b":"x = 7","option_c":"x = 5","option_d":"x = 3","option_e":"","option_f":"","bonne_reponse":"B","explication":"On développe d'abord : 2x - 8 = 10. Ensuite, on ajoute 8 : 2x = 18. Enfin, on divise par 2 : x = 9.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":1104,"question":"Quel est le coefficient directeur de la droite d'équation y = -3x + 2 ?","option_a":"2","option_b":"-3","option_c":"3","option_d":"-2","option_e":"","option_f":"","bonne_reponse":"B","explication":"Dans l'équation y = mx + p, m représente le coefficient directeur. Ici, m = -3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]