Question

A function is described by the following ordered pairs:

(7, 4.5)

(–4, 7.2)

(–7.2, –4)

(5.2, 3)

Which set of ordered pairs represents the inverse of the function?

(7, –4), (–7.2, –4), (3, 5.2), (4.5, –4)
(7, –4), (–7.2, 5.2), (4.5, 7.2), (–4, 3)
(4.5, 7), (7.2, –4), (–4, –7.2), (3, 5.2)
(7, 4.5), (–4, 7.2), (–7.2, –4), (5.2, 3)

Answer 1

Swap each ordered pair's coordinates. The inverse is

(4.5, 7), (7.2, –4), (–4, –7.2), (3, 5.2)

— the third choice.