How to find the inverse and then determine if the inverse is a function

The video tutorial explains how to solve for Y using inverse operations. It covers the process of undoing addition and squaring by applying square roots, emphasizing the importance of considering plus or minus when introducing square roots. The tutorial also discusses why distributing is not helpful in this context and finalizes the solution by rewriting Y as F inverse of X. It concludes by explaining that an inverse with a plus or minus is not a function, highlighting the difference between functions and non-functions.

Why is it necessary to consider both the positive and negative square roots?

Discuss why the inverse of a function may not be a function itself.