Pre-Algebra Examples

$\begin{array}{c} x & y \\ 1 & 9 \\ 2 & 3 \\ 3 & 4 \\ 3 & 5 \\ 3 & 9 \\ 4 & 9 \\ 3 & 3 \end{array}$

Step 1

Since $x = 3$ produces $y = 5$ and $y = 4$ , the table does not represent a function.

Not a function