Question

How do you find the constant of proportionality

Answer 1

The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.

Explanation:

Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.

Answer 2

to find the constant of proportionality here let's look at the equation of a line for a straight graph that passes through the origin. y is your vertical y-value for any given point on the line, x is your horizontal x-value for any given point on the line, and m is the slope.