Algebra Examples

${(5, 4), (5, 9), (8, 4), (8, 9)}$

Step 1

Since $x = 8$ produces $y = 4$ and $y = 9$ , the relation $(5, 4), (5, 9), (8, 4), (8, 9)$ is not a function.

The relation is not a function.

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$