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Unformatted text preview: 4.1 Extreme Values of Functions Greg Kelly, Hanford High School, Richland, Washington Borax Mine, Boron, CA Photo by Vickie Kelly, 2004 4.1 Extreme Values of Functions Greg Kelly, Hanford High School, Richland, Washington Borax Plant, Boron, CA Photo by Vickie Kelly, 2004 The textbook gives the following example at the start of chapter 4: The mileage of a certain car can be approximated by: ( 29 3 2 0.00015 0.032 1.8 1.7 m v v v v =+ + At what speed should you drive the car to obtain the best gas mileage? Of course, this problem isnt entirely realistic, since it is unlikely that you would have an equation like this for your car. ( 29 3 2 0.00015 0.032 1.8 1.7 m v v v v =+ + We could solve the problem graphically: ( 29 3 2 0.00015 0.032 1.8 1.7 m v v v v =+ + We could solve the problem graphically: On the TI89, we use F5 (math), 4: Maximum, choose lower and upper bounds, and the calculator finds our answer. ( 29 3 2 0.00015 0.032 1.8 1.7 m v v v v =+ + We could solve the problem graphically: On the TI89, we use F5 (math), 4: Maximum, choose lower and upper bounds, and the calculator finds our answer. The car will get approximately 32 miles per gallon when driven at 38.6 miles per hour....
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 Spring '09
 Sorray
 Calculus

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