
Quiz sur les fonctions polynômes
Quiz
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Physics
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Professional Development
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Practice Problem
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Medium
Samia Abbes
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Laquelle des fonctions ci-dessous est une fonction polynôme de degré 2 ?
f(x)=2x+1
g(x)=22x+5
h(x)=2x2+1
j(x)=32
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La parabole ci-dessous est la représentation graphique d'une des fonctions ci-dessous. Laquelle ?
f(x)=(x−1)+(x+2)
g(x)=(x+1)(x−2)
h(x)=21(x−1)(x+2)
j(x)=−3(x−1)(x+2)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Laquelle des expressions ci-dessous est la forme développée de la fonction polynôme de degré 2 f(x)=3(x−1)(x+2) ?
f(x)=3x2+3x−6
f(x)=3x2−1+2
f(x)=x2+x−2
f(x)=3x−1+x+2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Que permet de calculer le programme Python suivant ?
L'image de 1 par la fonction f(x)=x2+3x−5.
L'image de 1 par la fonction f(x)=2×2+3x−5.
L'image de f(x)=x2+3x−5 par la fonction polynome.
L'image de x par la fonction f(x)=x2+3x−5.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vrai ou faux ? Une fonction polynôme de degré 2 telle que a>0 est strictement positive sur l'ensemble des nombres réels.
Vrai
Faux
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce tableau de signes est celui d'une des fonctions polynôme de degré 2 ci-dessous. Laquelle ?
f(x)=3(x+2)(x−3,5)
f(x)=(x−2)(x+3,5)
f(x)=−3(x+2)(x−3,5)
f(x)=−2(x−2)(x+3,5)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est l'expression de la fonction dérivée de f(x)=5x+1 ?
f′(x)=5x+1
f′(x)=5+1
f′(x)=5
f′(x)=1
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