Inverse Functions

Every operation has an opposite. With functions the opposite is called the inverse function. It undoes the function and returns you to the initial input. There is a simple process to follow to find the inverse of any function which we look at in this video. 1) Start by writing the function as y= 2) Switch the x and y's around to get x = 3) Rearrange to make y the subject once more 4) You've found the inverse, so rewrite it as f^-1(x)