Which set of ordered pairs dose not represent a function?

Whatever you do and understand it is just work out the problem. :) That will help.

Step-by-step explanation:

Well, first you need to know and understand what function means and if it helps go back and redo to try and understand because i don't have what you have so i don't think i would understand the answer. Your welcome :)

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d

3

step-by-step explanation: