Question: The fuel consumption (measured in gallons per hour) of a car traveling at a speed of miles per hour is c = f (v). (a)

The fuel consumption (measured in gallons per hour) of a car traveling at a speed of miles per hour is c = f (v).
(a) What is the meaning of the derivative f’(v)? What are its units?
(b) Write a sentence (in layman’s terms) that explains the meaning of the equation f’(20) = - 0.05.

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