Determine if the Relation is a Function {(-6,1),(-3,-6),(4,-6),(4,-3)}

${(- 6, 1), (- 3, - 6), (4, - 6), (4, - 3)}$

Since $x = 4$ produces $y = - 6$ and $y = - 3$ , the relation $(- 6, 1), (- 3, - 6), (4, - 6), (4, - 3)$ is not a function.

The relation is not a function.