Algebra Examples

$(9, - 1)$ , $(- 1, 9)$ , $(9, 2)$ , $(2, - 1)$

Step 1

Since $x = 9$ produces $y = - 1$ and $y = 2$ , the relation $(9, - 1), (- 1, 9), (9, 2), (2, - 1)$ is not a function.

The relation is not a function.

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