Quelle est la forme canonique de la fonction f(x)=2x^2+8x-2 ?

Quiz de Mathématiques

Quiz
•
Mathematics
•
11th Grade
•
Hard
mahmoud abdallah
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
f(x)=2(x-2)^2-10
f(x)=2(x-2)^2+10
f(x)=2(x+2)^2-10
f(x)=2(x+2)^2+10
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quelles sont les racines de la fonction g(x)=3x^2+4x-4 ?
x=2 et x=-4/3
x=4 et x=-3/2
x=-2 et x=2/3
x=-4 et x=3/2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quelle est la solution de l'équation 3x^2-7x-6=0 ?
x=-2 et x=1/3
x=3 et x=-1/2
x=2 et x=-1/3
x=-3 et x=1/2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quelle est la racine évidente de l'équation x^2+(1-√2)x-√2=0 ?
x=1
x=-1
x=√2
x=-√2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quelle est la démarche pour déterminer que l'équation 15x^2+11x-2018=0 admet deux racines distinctes de signes contraires ?
Utiliser la méthode de substitution
Calculer le discriminant
Appliquer la méthode de factorisation
Utiliser la méthode de complétion du carré
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Quelle est la solution de l'inéquation -x^2+3x+4<0 ?
x∈]-∞,1[∪]2,+∞[
x∈]1,2[
x∈]-∞,1]∪[2,+∞[
x∈]1,+∞[
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Quelle est la forme canonique de la fonction h(x)=3x^2+6x-7 ?
h(x)=3(x+1)^2+10
h(x)=3(x-1)^2-10
h(x)=3(x-1)^2+10
h(x)=3(x+1)^2-10
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