Question

Which represents the inverse of the function f(x) = 4x?

A. h(x) = x+4
B. h(x) = x-4
C. h(x) = 3/4x
D. h(x) = 1/4x

Answer 1

Answer: D

Explanation:

To find the inverse, you switch x with y and y with x. Then, you solve for y.

y=4x [switch y with x and x with y]

x=4y [divide both sides by 4]

y=x/4

Now, we know the answer is D.