The graph shows stopping distances for trucks at various speeds on dry roads and on wet roads. Use this information to solve Exercises 92-
Source: National Highway Traffic Safety Administration
a. Use the statistical menu of your graphing utility and the quadratic regression program to obtain the quadratic function that models a truck's stopping distance, f(x), in feet, on wet pavement traveling at x miles per hour. Round the x-coefficient and the constant term to one decimal place.
b. Use the function from part (a) to determine speeds on wet pavement requiring stopping distances that exceed 446 feet.
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College Algebra with Integrated Review, Books a la Carte Edition, plus MyLab Math with Pearson eText -- Title-Specific Access Card Package (7th Edition)
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage