Question

Tell whether the relation is a function. Explain your reasoning

{(-1, 7), (9, 4), (3, -2), (5, 3), (9, 1)}

Answer 1

relation is a function

Explanation:

For the relation to be a function each value of x in the domain must map to exactly one unique value of y in the range.

This is the case here so the relation is a function

Answer 2

no, since the numbers are mixed up both negative and positive