Sagot :
bonjour
a. x -> x + 3 a = 1 et b = 3
b. x -> 2x - 1 a = 2 et b = - 1
c. x -> 2 - 5x a = - 5 et b = 2
d. x -> x a = 1
e. x -> 7 constante
f. x -> - 1/2 x a = - 1 /2
g. x -> x /3 - 1 a = 1/3 b = - 1
h. x -> - - 3/ 4 - x a = - 1 et b = - 3 /4
i. x -> 7 - 0,5 x a = - 0.5 et b = 7
bjr
fonction affine :
f(x) = ax + b
a) f(x) = x + 3
= 1x + 3
donc a = 1 et b = 3
b)
f(x) = ax + b
f(x) = 2x - 1
= 2x + (-1)
> a = 2 et b = -1
c)
f(x) = ax + b
f(x) = -5x + 2
=>a = -5 et b = 2
tu peux finir..