The document discusses inverses of functions. It explains that the inverse of a function is the function flipped about the line y=x. To find the inverse, you switch the x and y variables and solve for y. When solving for an inverse, you must remember plus and minus signs and note that the resulting graph may not be a function.

1. Go Gryffindor!Inverses

2. InversesThe inverse of a function is the function flipped about the line y=x

3. The red graph shows the inverse to the blue graph (the dotted green line shows the line y=x)

4. To find the inverse of a function You switch the variables x and yThen you solve for y

5. When solving for an inverseMake sure to remember plus and minusesWhen you find a function’s inverse often the resulting graph is not a function so you must remember all of the parts of the graph