We can use the formula for slope to find the rate of change:
slope = (change in y) / (change in x)
In this case, the change in y is the change in cost of broccoli (in dollars per pound), and the change in x is the change in quantity of broccoli (in pounds).
So, slope = (16.50 - 8.25) / (6 - 3)
= 8.25 / 3
= 2.75
Therefore, the rate of change in the purchase price of broccoli is $2.75 per pound.
A linear graph of the cost of broccoli in dollars per pound has the points
(3, 8.25) and (6, 16.50). What is the rate of change in the purchase price in dollars per pound?
1 answer