The table shows the relationship between the speed of a car and the distance that it requires to stop after the brake has been appliec given pressure. Speed (km/h) Stopping Distance (m) 40 6.6 60 14.9 80 26.5 90 33.5 100 41.4 The data can be modelled by the quadratic regression equation in the form y = ax + bx + c, where x represents the speed and y represents the stopping distance. km/h. If the stopping distance of the car is 30.7 m, then the car was travelling at a speed, to the nearest tenth, of (Record your answer in the numerical-response section on the answer sheet.)

The table shows the relationship between the speed of a car and the distance that it requires to stop after the brake has been appliec given pressure. Speed (km/h) Stopping Distance (m) 40 6.6 60 14.9 80 26.5 90 33.5 100 41.4 The data can be modelled by the quadratic regression equation in the form y = ax + bx + c, where x represents the speed and y represents the stopping distance. km/h. If the stopping distance of the car is 30.7 m, then the car was travelling at a speed, to the nearest tenth, of (Record your answer in the numerical-response section on the answer sheet.)

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 91E

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#b. Develop an estimated regression equation with both television advertising and newspaper advertising as the independent variables (to 2 decimals).

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