logarithme décimal et fonction exponentielle
Authored by Céline Seguier
Mathematics
11th - 12th Grade
Used 1+ times
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10 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Quelles sont les fonctions exponentielles parmi les fonctions suivantes ?
f(x) = x
f(x) = x2
f(x) = 10x
f(x) = log(x)
f(x) = 2x
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la forme de l'expression d'une fonction exponentielle ?
f(x) = qx
f(x) = 10x
f(x) = 10 + x
f(x) = x2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est l'expression d'une fonction exponentielle de base 7 ?
f(x) = 7x
f(x) = log(7x)
f(x) = 7x
f(x) = x7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est le sens de variation de la fonction f(x) = log(x) pour tout x > 0 ?
plat
vertical
croissant
brioche
des croissants
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qui suis-je ?
log(x)
ex
un avion qui s'écrase
log(-x)
e-x
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
log(a) + log(b)
log(a) - log(b)
10ab
log(a)/log(b)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
log(2x) est égal à :
2x
I don't know
log(2)
x +log(2)
xlog(2)
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