Pre-Algebra Examples

${(5, 90), (3, 45), (5, 65)}$

Step 1

Since $x = 5$ produces $y = 90$ and $y = 65$ , the relation $(5, 90), (3, 45), (5, 65)$ is not a function.

The relation is not a function.

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