Algebra Examples

${(5, - 4), (5, 1), (5, 4), (5, 5)}$

Step 1

Since $x = 5$ produces $y = 4$ and $y = 5$ , the relation $(5, - 4), (5, 1), (5, 4), (5, 5)$ is not a function.

The relation is not a function.