1. Is the relation a function? Why or why not?

{ (-3,-2), (-1,0), (1, 0), (5,-2) }

Yes

Step-by-step explanation:

In a function, every input (x) should have a unique output (y).

There can be multiple x for a y, but not multiple y for one x

yes, the given relation is a function.

Step-by-step explanation:

The given relation is

{ (-3, - 2), (-1, 0), (1, 0), (5, - 2) }

A relation is called function if each element of the domain is paired with exactly one element of the range.

It means for each value of x there exist a unique value of y.

In the given relation for each value of x there exist a unique value of y.

Therefore the required solution is yes and this relation is a function.