A car safety association conducted tests to measure the stopping distances of a new model of car and collected the following measurements. 30 40 50 60 70 80 90 100 Speed (km/h) d(s) Stopping Distance (m) 19.2 22.2 24.8 27.1 29.5 31.6 33.2 35.0

A car safety association conducted tests to measure the stopping distances of a new model of car and collected the following measurements. 30 40 50 60 70 80 90 100 Speed (km/h) d(s) Stopping Distance (m) 19.2 22.2 24.8 27.1 29.5 31.6 33.2 35.0

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter4: Polynomial And Rational Functions

Section4.6: Rational Functions

Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.

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Question

Use these model equations: the linear equation y=0.225x+12.45, the quadratic equation y=0.0032(x-30)*2+19.2, and the exponential equation y=1.90(1,08)*x

a) Graph each equation on the same grid. Please complete the
table of values. Graph each equation on the same grid.

b) Which model is most reasonable? Explain your answer

A car safety association conducted tests to measure the stopping distances of a new
model of car and collected the following measurements.
S
30
40
50
60
70
80
90
100
Speed (km/h)
d(s)
Stopping Distance (m)
19.2
22.2
24.8
27.1
29.5
31.6
33.2
35.0

Formula Formula A polynomial with degree 2 is called a quadratic polynomial. A quadratic equation can be simplified to the standard form: ax² + bx + c = 0 Where, a ≠ 0. A, b, c are coefficients. c is also called "constant". 'x' is the unknown quantity

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