Question

Which of the following relations is not a function?

A. (3, 4), (-2, 2), (3, 1), (-7, 2)

B. (-7, 4), (3, 3), (-2, 1), (7, 2)

C. (-2, 4), (3, 2), (7, 1), (-7, 5)

D. (7, 4), (-2, 2), (3, 1), (-7, 2)

Answer 1

ez. the answer is A

Explanation:

if any x's repeat, it's automatically not a function. so you see how there are 2 3's on answer choice A

Answer 2

Answer: A isn't a function

Explanation: