Suppose that the weight (in pounds) of an airplane is a linear function of the total amount of fuel (in gallons) in its tank. When graphed, the function gives a line
with a slope of 5.9. See the figure below.
With 48 gallons of fuel in its tank, the airplane has a weight of 2383.2 pounds. What is the weight of the plane with 77 gallons of fuel in its tank?
Airplane
weight
(in pounds)
2383.2
48
Amount of fuel
(in gallons)
pounds
48
