Question

Can somebody please help!!?? I'll fan and five medal!
Which relation is a function?

A.
(–25, 16), (0, 16), (–25, 18)

B.
(19, 11), (34, 12), (34, 10)

C.
(35, 31), (24, 15), (12, 0)

D.
(34, 30), (18, 17), (34, 15)

Answer 1

A and B and D are not functions. Why? because for a value of x there are 2 values of y
A: x = -25 -> y = 16 and 18
B: x = 34 -> y = ... and ....
D: x = 34.-> y = ... and ....

Answer 2

so the answers c?

Answer 3

yes