Question

Which function is the inverse of f(x) = 8x + 4? A. B. C. D.

Answer 1

x = -1/2

Explanation:

To find x-intercepting/zero, substitute f(x) = 0

0 = 8x + 4

move the variable to the left hand side and change its sign

-8x = 4

divide both aides of the equation by -8

x = -1/2