Question

Which set of values is a function?

a.)(9,5), (10,5), (9,-5),(10,-5)
b.)(3,4), (4,-3),(7,4),(3,8)
c.)(6,-5) (7,-3), (8,-1), (9,1)
d.)(2, -2), (5,9), (5,-7), (1,4)

Answer 1

the answer is C!!!!!!!

Answer 2

The answer is C
I hope this helps:)