An Inverse Function, is a function that will undo or reverse the work that was done by an original function.
If you take a jar out of a cupboard, the inverse action would be to put the jar back in the cupcoard.
The reverse of the action that was originally done, undoing the work.
When dealing a function and its inverse, it's the same general idea.
The graph of the inverse also follows an interesting pattern.
Inverse Function Pages
- Functions and Inverses
A detailed introduction to functions and their inverse.
Examples of how to find an inverse, showing the steps and notation involved.
- Graphing Functions, Inverse
Find out how to draw the graph of an inverse.
See how it relates to the graph of the original function, and how the domain and range are affected.
- Horizontal Line Test
The Horizontal Line Test can be a handy method of determining the existence of an inverse.