Algebra Examples

${(1, 2), (1, 3), (1, 4), (1, 5)}$

Step 1

Since $x = 1$ produces $y = 4$ and $y = 5$ , the relation $(1, 2), (1, 3), (1, 4), (1, 5)$ is not a function.

The relation is not a function.

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