Each of the following tables defines a relationship between an input x and an output y. Which of the relationships do NOT represent functions?

Table A

x

-8

-3

0

6

y

24

4

9

72

Table B

x

9

15

24

38

y

-14

-16

53

29

Table C

x

15

24

24

100

y

-16

53

29

7

Table D

x

-8

-5

0

6

y

24

4

9

72

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