Respostas

2017-01-11T13:30:03-02:00
Boa tarde Cadum

f(x) = 3x - 1
f(g(x)) = 6x + 8 

f(ax+b) = 3*(ax + b) - 1 = 6x + 8

3ax + 3b - 1 = 6x + 8

3a = 6,  a = 2

3b - 1 = 8
3b = 9, b = 3

g(x) = 2x + 3