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

{(–1, 9), (0, –1), (–1, 4), (4, 9)}

Yes; there is only one range value for each domain value.

No; a range value has two domain values.

Yes; there is only one domain value for each range value.

No; a domain value has two range values.

The graph of the relation would not be a function because the domain value -1 is paired with two different range values (9 and 4). In order for a relation to be a function, each domain value can only be paired with one range value.