Question

Given the function f(x) = −2x + 4, find x if f(x) = 20.

−8

−36

44

−12

Answer 1

f(x) = −2x + 4

20 = −2x + 4 ... replace f(x) with 20 (since f(x) = 20)

now solve for x

Answer 2

-8

Answer 3

not this one ivettef365