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

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

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

No; a domain value has two range values.

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

No; a range value has two domain values.

The Answer is: No; a domain value has two range values.

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

In a function, each input has an output

Each domain has a range. In a function, range can be repeated but domain cannot be repeated. Same domain cannot have two range values.

Here domain is {-1, - 2, - 2, 0}

Range is { 1, 1, 2, 2}

Domain - 2 is repeating so this relation is not a function

Answer : No; a domain value has two range values.