Pre-Algebra Examples

$s = (4, - 4)$ , $(4, 4)$ , $(1, 4)$ , $(- 5, - 4)$

Step 1

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

The relation is not a function.