?Car tires need to be inflated properly because overinflation or underinflation can
Chapter 2, Problem 58(choose chapter or problem)
Car tires need to be inflated properly because overinflation or underinflation can cause premature tread wear. The data in the table show tire life L (in thousands of miles) for a certain type of tire at various pressures P (in lb/in2).
Use a calculator or computer to model tire life with a quadratic function of the pressure.Use the model to estimate dL/dP when P = 30 and when P = 40. What is the meaning of the derivative? What are the units? What is the significance of the signs of the derivatives?
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