Question

What is the inverse of this function

Answer 1

D

Explanation:

How to find the inverse of a function.

- Replace f(x) with y

- Swap x and y places. (sign doesn't matter here.)

- solve for y.

f(x) = 8√x

y = 8√x

x = 8√y

x^2 = (8√y)^2

x^2 = 64y

y = x^2 / 64

= (1/64) x^2