Algebra Examples

$(- 1, 0)$ , $(1, - 4)$ , $(2, - 3)$ , $(4, 5)$ , $(5, 12)$

Since there is one value of $y$ for every value of $x$ in $(- 1, 0), (1, - 4), (2, - 3), (4, 5), (5, 12)$ , this relation is a function.

The relation is a function.

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