Quiz sur les fonctions quadratiques
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Karine Robert
Used 5+ times
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10 questions
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1.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Quelle est la première étape pour déterminer la règle d'une fonction quadratique?
Déterminer la valeur du paramètre a.
Substituer les coordonnées du point connu dans la règle.
Écrire la règle sous la forme f(x) = ax².
Résoudre l'équation pour x.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dans l'exemple donné, quelle est la valeur de a pour la fonction f(x) = ax² si le point est (3, -45)?
a = 5
a = -5
a = 9
a = -3
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dans l'exemple, quelle équation est obtenue après avoir substitué y = 150 dans y = 6x²?
150 = 6x
150 = 6x²
150 = x²
150 = 3x²
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Quelle est la valeur de h(1000) si h(x) = 0,1x² ?
100000
10000
1000
100
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Quelle est la valeur de i(0,5) si i(x) = 3,5x² ?
0,875
1,75
0,5
1,25
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Quelle est la valeur de x lorsque g(x) = -300 et g(x) = -3x² ?
10
5
15
20
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4,5
-4,5
3
-3
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