check my answer? Which relation does not represent a function?

(-8, 4), (-3, 2), (1, 3), (5, -8)

(2, 0), (4, 6), (7, 6), (8, 5)

(-4, 6), (-1, 1), (0, 4), (4, 7)

(1, 2), (2, 5), (5, 7), (1, 3)

i got D

Question

check my answer? Which relation does not represent a function?

 (-8, 4), (-3, 2), (1, 3), (5, -8)

 (2, 0), (4, 6), (7, 6), (8, 5)

 (-4, 6), (-1, 1), (0, 4), (4, 7)

 (1, 2), (2, 5), (5, 7), (1, 3)

i got D

ivettef365 · Answer

if you have a repeating number on x then is not a function

anonymous · Answer

oh okay thank you (: @ivettef365

ivettef365 · Answer

and you are right on D (1,2) (1,3) the 1 repeats not a function

ivettef365 · Answer

yw :)