Which of the following relations is not a function?

Question

 

A. 

(-6, 4), (2, 3), (-3, 1), (9, 2)

B. 

(9, 4), (-3, 2), (2, 1), (-6, 2)

C. 

(-3, 4), (2, 2), (9, 1), (-6, 5)

D. 

(2, 4), (-3, 2), (2, 1), (-6, 2)

Answer 1

Michael, a function has only one y-value for each x-value. I bet you can find the set that does not fit that!