Question

5.

Is this relation a function?
{(-9, -8), (-5, 8), (1, 3), (8, -1)}
A. Yes
B.
No

Answer 1

yes

Explanation:

It is afunction as long as no x-value has more than 1 y-value.

There are 4 x-values: -9, -5, 1, 8

None of them appear with 2 different y-values.

If you had (1, 3) and (1, 5), for instance, it would NOT be a function.