What is the constant of proportionality in the equation, Y=4.50x?

Solution:

Given that,

We have to find the constant of proportionality in the equation

We know that,

When y varies directly with x, then

Where, "k" is constant of proportionality

From given,

y = 4.50x

Compare the above equation with eqn 1,

Thus, constant of proportionality in the equation y = 4.50x is 4.50

c. 4 1/4 pounds