Answer:
4
Step-by-step explanation:
The constant of proportionality is what determines the relationship between y and x. If t is the constant of proportionality then an example is y = tx .
So 4 is the constant of proportionality
A) 4
3 times 4 is twelve. 1 times 4 is 4. 7 times 4 is 28. All of the numbers on the left can be multiplied by 4 to get the answer on the right.
