Tell whether x and y are proportional

x - 1, 2, 3, 4

y - 3, 4, 5, 6

Explain your reason

not proportional

y and x are not proportional. If you divide y with x, you will get different unit rates.

3 divided by 1 = 3

4 divided by 2 = 2

5 divided by 3 = 1.666666666

6 divided by 4 = 1.5

So no, y and x are not proportional because of their unit rates.