Question

Which relation is displayed in this table? x y

5 5

A. {(5,  5), (6,  −6), (8,  7), (−9,  9)} 8 7

6 -6

-9 9

B. {(5,  5), (−6,  6), (7, 8), (9,  −9)}



C. {(−5,  5), (−6,  6), (−8,  7), (−9,  9)}



D. {(5, −5), (6, −6), (8, −7), (9, −9)}

Answer 1

A. {(5, 5), (6, −6), (8, 7), (−9, 9)}

Explanation:

Compare the table contents to the ordered pairs in each relation. The first pair of table values, (5, 5) matches relations A and B, but not C or D.

The second pair of table values (8, 7), matches relation A, but not B. Since all pairs of table values show up in relation A, and we have rejected relations B, C, and D as inappropriate choices, the answer is A.