Algebra Examples

${(2, 7), (2, 8), (2, 9)}$

Step 1

Since $x = 2$ produces $y = 8$ and $y = 9$ , the relation $(2, 7), (2, 8), (2, 9)$ is not a function.

The relation is not a function.

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