Respuesta :

Answer:

the constant of proportionality is 4

2(4)=8

3(4)=12

5(4)=20

7.50(4)=30

12.50(4)=50

Step-by-step explanation:

all you have to do to find the constant is divide your x value by the y so for example 8 divided by 2 and that will give you 4 so thats the constant of proportionality you will keep on getting 4 like when you divide 12 by 3 or 20 by 5 thats why 4 is the constant.