Find the domain and range.
-{(2, 1), (6, 3), (-6, 6), (-6, 8)}
A) D = {2, 6, -6}; R = {1, 3, 6, 8}
B) D = {1, 3, 6, 8}; R = {2, 6, -6}
C) D = {2, 6, -6, -6}; R = {1, 3, 6, 8}
D) D = {2, 6, -6, 6}; R = {1, 3, 6, 8}

Question

Quizplus · Accepted Answer

The domain (D) consists of the first elements of each ordered pair, which are {2, 6, -6}. The range (R) consists of the second elements of each ordered pair, which are {1, 3, 6, 8}. Note that even though (-6, 6) and (-6, 8) have the same first element, -6 is listed only once in the domain.

Find the Domain and Range