Question

Considere as funções f(x)= 3x+4 e g(x)=8x-1 e determine;
A) F(g(x))
B) G(f(x))
C) F(g(1))

Answer 1

a) f(g(x)) = 3(8x-1)+4 = 24x-3+4 = 24x+1
b) g(f(x)) = 8(3x+4)-1 = 24x+32-1 = 24x+31
c) f(g(1)) = 3(8(1)-1)+4 = 25