How do you find the inverse of $y=4^x$ and is it a function?

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Answer 1 · 2016-04-15T12:21:38

Inverse function of $y=4^x$ is $y=0.7213lnx$

As $y=4^x$

$x=log_4y=lny/ln4=0.7213lny$

Hence inverse function of $y=4^x$ is

$y=0.7213lnx$

How do you find the inverse of y=4^xy=4^x and is it a function?