Inverses
Set of Points
Whenever a function is given as a list of ordered pairs, simply switch the x and y-values to create an inverse.
Example Find the inverse of 
, and determine if the inverse is a function.
Step 1. Switch the x and y-coordinates.
Step 2. Determine if the inverse is a function.
Since every input has exactly one output, the inverse is a function. This function is called "one-to-one" which means every x and y value is used only once.