Réponse :
bonjour
f (x) = 5 x + 2
f (3) = 17
f ( - 6 ) = - 28
f ( 2/3 ) = 10/3 + 2 = 16/3
5 x + 2 = 22
5 x = 20
x = 4
5 x + 2 = - 28
5 x = - 30
x = - 6
5 x + 2 = - 2
5 x = - 4
x = - 4/5
f (x) = - 20/5 = - 4 = - 4 x
g (x) = 15/3 = 5 = 5 x
h ( x) = 2 /3 = 2 x /3
Explications étape par étape :
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Réponse :
bonjour
f (x) = 5 x + 2
f (3) = 17
f ( - 6 ) = - 28
f ( 2/3 ) = 10/3 + 2 = 16/3
5 x + 2 = 22
5 x = 20
x = 4
5 x + 2 = - 28
5 x = - 30
x = - 6
5 x + 2 = - 2
5 x = - 4
x = - 4/5
f (x) = - 20/5 = - 4 = - 4 x
g (x) = 15/3 = 5 = 5 x
h ( x) = 2 /3 = 2 x /3
Explications étape par étape :