Do the values in this table represent a proportional relationship?

Question

x 2 4 6 8
y 1 2 3 4


Responses

Yes, and the constant of proportionality is 12.
Yes, and the constant of proportionality is , 1 half, .

Yes, and the constant of proportionality is 2.
Yes, and the constant of proportionality is 2.

No.
No.

I don't know.

Answer 1

No.