Pre-Algebra Examples

$(- 3, 21)$ , $(- 2, 12)$ , $(- 1, 5)$ , $(0, 0)$ , $(1, - 3)$ , $(2, - 4)$ , $(3, - 3)$

Step 1

Since there is one value of $y$ for every value of $x$ in $(- 3, 21), (- 2, 12), (- 1, 5), (0, 0), (1, - 3), (2, - 4), (3, - 3)$ , this relation is a function.

The relation is a function.