Question

Given the definitions of f(x) and g(x) below, find the value of (g•x)(1).

=
f(x) = 3x2 + 2x - 3
g(x) = -x + 4

Answer 1

Explanation:

f(x) = 3x2+2x-3

g(x) = -x+4

(g.f)(x) = g[3x2+2x-3]

= -(3x2+2x-3)+4

= -3x2-2x+3

(g.f)(1) = -3(1)2-2(1)+3

= -3-2+3

= -2