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Sagot :

Bonjour,

f(x)= ax

Déterminer l'expression de:

f(6)= 5

6a= 5

a= 5/6

f(x)= 5x/6

g(-4)= 8/7

-4a= 8/7

7(-4a)= 8

a= -8/28

a= -2/7

g(x)= -2x/7

h(2/3)= 5

2a/3= 5

2a= 3x5

a= 15/2

h(x)= 15x/2

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