Specify the domain for the relation. {(4, 2), (8, 5), (13, 12), (16, 17)}
A) D = {4, 8, 13, 16, 2, 5, 12, 17}
B) D = {4, 8, 13, 16}
C) D = ( $-$ 4, 16)
D) D = {2, 5, 12, 17}

Question

Quizplus · Accepted Answer

The domain of a relation is the set of all possible x-values (first values) in the ordered pairs. In this case, the x-values are 4, 8, 13, and 16. Therefore, the correct answer is B. Option A includes all four x-values as well as all four y-values, which is incorrect. Option C includes all the numbers between -4 and 16, which is an infinite set and is not part of the domain. Option D includes all four y-values, which is also incorrect.

Specify the Domain for the Relation −-− 4, 16) D) D = {2, 5, 12, 17}

Specify the Domain for the Relation $-$ 4, 16)
D) D = {2, 5, 12, 17}