Which of the following tables represents a proportional relationship?
OA
B.
OC.
OD.
x6 12 18 24
y 18 36 54 72
24 25 26 27
y 72 54 36 18
M
6 7 8 9
y 18 36 54 72
x 24 28 32 36
y 72 85 96 108