Question

Which of the following relationships represents a function?

A. (-2,0), (5,3), (2,1), (5,5)
B. (-2,4), (5,6), (-2,3), (9,2)
C. (-2,4), (5,6), (5,3), (9,2)
D. (-2,4), (5,2), (2,1), (9,2)

Answer 1

D. (-2,4), (5,2), (2,1), (9,2)

Explanation:

The x-values in functions cannot repeat in any coordinate of the function.