How do you find the inverse of $y = 3^x$ and is it a function?

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Answer 1 · 2016-03-19T15:05:22

$x=log y/log 3$ .

Equate logarithms of y and $3^x$ .

log $3^x$ = x log 3.

How do you find the inverse of y = 3^xy = 3^x and is it a function?