Determine if the Relation is a Function {(12,3),(24,-8),(45,3),(12,5),(46,5)}

${(12, 3), (24, - 8), (45, 3), (12, 5), (46, 5)}$

Step 1

Since $x = 12$ produces $y = 3$ and $y = 5$ , the relation $(12, 3), (24, - 8), (45, 3), (12, 5), (46, 5)$ is not a function.