SOLUTION: 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 o

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Question 401150: 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 5.5 .
With 51 gallons of fuel in its tank, the airplane has a weight of 2280.5 pounds. What is the weight of the plane with 25 gallons of fuel in its tank?

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


This is exactly the same problem as:

Find a linear function that has a slope of 5.5 and which graph contains the point (51, 2280.5). Then evaluate

Use the point-slope form of an equation of a line:



where are the coordinates of the given point and is the given/calculated slope.





You really don't have to do any more to this for the purposes of the problem, but go ahead and simplify it as pleases you.

Finally, evaluate:



John

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