Pre-Algebra Examples

$(0, 40)$ , $(10, 30)$ , $(20, 20)$ , $(30, 10)$ , $(40, 0)$

Step 1

Since there is one value of $y$ for every value of $x$ in $(0, 40), (10, 30), (20, 20), (30, 10), (40, 0)$ , this relation is a function.

The relation is a function.