Question

Determine which of the following relations is a function. (Lesson 1-7)

A.{(–4, 3), (−2, −2), (0, 2), (0, 5)}
B.{(−3, 1), (−3, 3), (−2, −1), (0, 5)}
C.{(−4, −1), (−2, −1), (−1, −1), (3, 3)}
D.{(2, −5), {−1, −1), (0, 4), (2, −3)}

Answer 1

c

Explanation:

c is a function because the x variables don't repeat. You can't have the same number in x variable position repeat.