Question

The variables x and y vary directly. Use the values to find the constant of proportionality, k. Then write an equation that relates x and y.
y=72; x=3

Answer 1

Y/X=? Basically saying that 72 divided by 3 is what

Answer 2

y = kx

Replace y and x to solve for k:

72 = 3k

Divide both sides by 3:

k = 24

Now replace k with 24:

y = 24x