(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find the inverse of each of the following functions

2. Relevant equations

y= [sqrt] x^2 + 9

3. The attempt at a solution

y = [sqrt] x^2 +9

x= [sqrt] y^2 +9

x-3= y

I did the sqrt of 9, and sqrted y and its wrong.

The answer is apparently y=+/(plusminus) [sqrt]x^2 -9 .. How do you solve this?

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# Inverse of radical function

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