Question

The functions fand g are defined as follows.

f(x) = 2x² – 3x
g(x)=-2x + 2
Find f(-2) and g(5).
Simplify your answers as much as possible.

Answer 1

f(-2) = 14

g(5) = -8

Explanation:

f(x) = 2x² – 3x

f(-2) = 2(-2)² – 3(-2)

f(-2) = 2(4) + 6

f(-2) = 8 + 6

f(-2) = 14

g(x) = -2x + 2

g(5) = -2(5) + 2

g(5) = -10 + 2

g(5) = -8