Question

Find the inverse of the following function: f(x) = 8√x for x ≥ 0

Answer 1

Explanation:

Rewrite the function f(x) = 8√x as y = 8√x.

To find the inverse function, do the following:

1) Interchange x and y. We get x = 8√y

x x^2

2) Solve this result for y: (x/8) = √y => y = ( -------- )^2, or y = ---------

8 64