Algebra Examples

${(- 4, - 4), (- 2, 1), (- 1, - 7), (5, - 9)}$

Step 1

Since there is one value of $y$ for every value of $x$ in $(- 4, - 4), (- 2, 1), (- 1, - 7), (5, - 9)$ , this relation is a function.

The relation is a function.