Which of the following tables represents a proportional relationship?

Question

A.
x 12 18 30 36
y 4 8 16 24

B.
x 12 18 30 36
y 12 24 36 48

C.
x 12 18 30 36
y 10 15 25 30

D.
x 8 12 16 24
y 10 15 25 30

Answer 1

The correct answer is B.
In table B, as x increases by a factor of 3 (from 12 to 36), y also increases by a factor of 3 (from 12 to 48). This shows a constant ratio between x and y, indicating a proportional relationship.