The fuel efficiency F (in miles per gallon) of a car is approximated by F = 0.0191s2 +
Chapter 2, Problem 102(choose chapter or problem)
The fuel efficiency F (in miles per gallon) of a car is approximated by
where s is the average speed of the car (in miles per hour).
(a) Use a graphing utility to graph the function over the specified domain.
(b) Use the graph to determine the greatest fuel efficiency of the car. How fast should the car travel?
(c) When the average speed of the car is increased from 20 miles per hour to 30 miles per hour, the fuel efficiency will be increased by approximately what factor?
Text Transcription:
F=-0.0191s^2 +1.639s+2.20, 5 leq s leq 65
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