Function Inverses Example 1

Sal continues looking at function inverses in this video by showing two examples. In each example, he finds the inverse and shows the graph of both functions. His examples are with linear functions, but his first example shows a function whose inverse is the same as the function. Before you have them watch this video, consider having students find the inverse of such a function and see if they can determine why its inverse is the same and why it makes sense.