Answer:
k = 8
y = 8x
Step-by-step explanation:
When two variables are directly proportional to each other, their relationship is given as y =kx, where k is known as constant of proportionality,
y = kx
Substitute (3 ,24) in the above equation and find the value of k.
24 = k*3
24 ÷ 3 = k
8 = k
y = 8x
