  The gas mileage of a car (in miles per gallon) is highest when the car is going about 45 miles per hour and is lower when the car is going faster or slower than 45 mph. Graph gas mileage as a function of speed of the car.

Question

The gas mileage of a car (in miles per gallon) is highest when the car is going about 45 miles per hour and is lower when the car is going faster or slower than 45 mph. Graph gas mileage as a function of speed of the car.

Step 1

Here given that gas mileage of car is highest when the speed of the car is 45 miles per hour and the mileage is lower if the car is going above or below 45 miles per hour. Here we need to graph gas mileage as funciton of speed of car.

Step 2

Here let us assume f(x) is the function of speed of car and it is at the peak when speed is 45 miles per hour. From this we can understand that t...

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Calculus 