Answer
Domain: {5, 6, 7}, Range: {-2, 6}, No
Work Step by Step
The domain is the set of all first components of the ordered pairs, or {5, 6, 7}. The range is the set of all second components of the ordered pairs, or {-2, 6}. This relation is not a function because x=5 corresponds to more than one component in the range.
