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Sagot :

Bonjour

f est la fonction définie par f(x) = -3x + 2.

Calculer l'image de :

a. 1

f(x) = -3x + 2

f (1) = - 3 * 1 + 2

f (1) = - 3 + 2

f (1) = - 1

b.0

f(x) = -3x + 2

f (0) = - 3 * 0 + 2

d (0) = 2

c. -2

f(x) = -3x + 2

f (- 2) = - 3 * (- 2) + 2

f (- 2) = 6 + 2

f (- 2) = 8

d. 2/3

f(x) = -3x + 2

f (2/3) = - 3 * 2/3 + 2

f (2/3) = - 6/3 + 2

f (2/3) = - 2 + 2

f (2/3) = 0

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