Question

Which set is a function?

A. (0,3) (3,0) (0,4) (4,0)
B. (0,2) (2,0) (4,6) (6,4)
C. (2,6) (3,6) (4,6) (2,0)
D. (6,2) (2,0) (4,6) (6,4)

Answer 1

An input can have two outputs but, an output cannot have two inputs. So, D is right.

Answer 2

It has to be "D" :)


hope it helped1