Question

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

6.2
. See the figure below.
With
49
gallons of fuel in its tank, the airplane has a weight of
2403.8
pounds. What is the weight of the plane with
75
gallons of fuel in its tank?

Answer 1

''You have two points relating fuel and weight.
(15,2187) and (35,2303)
------------
slope = (2303-2187)/(35-15) = 5.8''