Question

dados f(×)=3×-1 e f(g (×)) =6×+8 calcular g(×)

Answer 1

Resposta:

faça assim

f(x) = 3x - 1

g(x) = ax + b

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

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

3a = 6

a = 2

3b - 1 = 8

3b = 8 + 1 = 9

b = 3

g(x) = 2x + 3