The graph below shows a line of best fit for data collected on the cost of shipping a letter or package, with different couriers, as a function of weight.

Which of the following is the equation of the line of best fit?

A. Y=2/5x
B. y = 10x
C. Y=1/2x

The graph below shows a line of best fit for data collected on the cost of shipping a letter or package with different couriers as a function of weight Which of class=