Algebra Examples

$(4, 7)$ , $(8, 5)$ , $(6, 4)$ , $(5, 3)$ , $(4, 2)$

Step 1

Since $x = 4$ produces $y = 7$ and $y = 2$ , the relation $(4, 7), (8, 5), (6, 4), (5, 3), (4, 2)$ is not a function.

The relation is not a function.