soit; f:x -> 2x +3 1)a f(0)=... 1)b f(5)=... 1)c f(12)=... soit; b:x -> 5x-2 2)a g(0)=... 2)b g(2)=... 2)c g(6)=... soit; h:x -> 1/6x -3 3)a

f(x) = 2x + 3

f(0) = 2 x 0 + 3 = 3
f(5) = 2 x 5 + 3 = 10 + 3 = 13
f(12) = 2 x 12 + 3 = 24 + 3 = 27

(x) = 5x - 2

g(0) = 5 x 0 - 2 = - 2
g(2) = 5 x 2 - 2 = 10 - 2 = 8
g(6) = 5 x 6 - 2 = 30 - 2 = 28

h(x) = 1/6x - 3

h(0) = 1/6 x 0 - 3 = 0 - 3 = - 3
h(6) = 1/6 x 6 - 3 = 6/6 - 3 = 1 - 3 = - 2
h(24)  1/6 x 24 - 3 = 24/6 - 3 = 4 - 3 = 1