Give the domain and range of the relation.
-{(6, 7), (10, -8), (9, 6), (9, 2)}
A)domain = {9, 6, 10}; range = {6, 7, -8, 2}
B)domain = {9, 6, 10, -9}; range = {6, 7, -8, 2}
C)domain = {9, 6, 10, 19}; range = {6, 7, -8, 2}
D)domain = {6, 7, -8, 2}; range = {9, 6, 10}

Question

Quizplus · Accepted Answer

The domain of a relation consists of all the first elements of the ordered pairs, and the range consists of all the second elements. For the given relation, the domain is {6, 10, 9} (note that 9 is repeated but listed only once since sets do not include duplicates), and the range is {7, -8, 6, 2}. Therefore, the correct answer is A) domain = {9, 6, 10}; range = {6, 7, -8, 2}. There was a mistake in listing the domain in the correct answer; it should be {6, 10, 9}, but based on the provided options, A is the closest match.

Give the Domain and Range of the Relation