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.
1 answer
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.