Question

Given f(x)=3x-4 and g (x)=-2x+7 evaluate (f o g)(5)

Answer 1

f(x) = 3x - 4

g(x) = -2x + 7

(f o g)(x) = f(g(x)) = -2(3x - 4) + 7

= -6x + 8 + 7 = -6x + 15

(f o g)(5) = -6(5) + 15 = -15