Inverse Function

Motto: Whatever a function done, the inverse undone.

Let's see how this 'done-undone' effect of a function and its inverse happens for tables, relations, equations and graphs ...

Recall Question: Any function has an inverse that it is also a function?

Answer: Only the functions for that any horizontal line cuts their graph in one single point (one-to-one functions) have an inverse that is a function.

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Finding inverse function from equation

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