Find the Inverse (1,-5) , (12,-7) , (9,-9) , (16,-13)

Since there is one value of ${\displaystyle y}$ for every value of ${\displaystyle x}$ in ${\displaystyle (1,-5),(12,-7),(9,-9),(16,-13)}$, this relation is a function.

Use the definition of the inverse of a function to find the inverse of the set. The inverse is found by swapping the values of ${\displaystyle x}$ and ${\displaystyle y}$ in each ordered pair.