Question

How do you find the inverse of `y=log_8x`?

Answer 1

`f^-1(x) = 8^x`

Explanation:

To find the inverse function the subject of the formula is

changed to x.

Using: `log_b a = n rArr a = b^n`

then `log_8 x = y rArr x = 8^y`

`rArr f^-1(x) = 8^x`