Identify the constant of proportionality in the table below use the formula y = KX.

Students 2, 3, 5

Cookies Eaten 14, 21, 35

Ok, so you can represent the students as K and Y as the cookies eaten. X is your constant of proportionality (the number you multiply to k to get y).

For the first one, 14/2 which equals 7. Try the next set, 21/3=7 also and finally 35/5=7. You can see that the C. O. P is 7.