According to data from the National Highway Traffic Safety Admin- the accident rate as a function of the age of the driver in years x can be approximated by the function istration, f(x) = 0.0232x² – 2.28x + 60.0, for 16 < x< 85. Find both the age at which the accident rate is a minimum and the minimum rate to the nearest hundredth. 73/College Bhrollment The table lists total fall enroll- ments in degree-granting postsecondary colleges in the United States for selected years. (a) Plot the data. Let x = 0 correspond to the year 2008. Enrollment Year (in millions) 2008 19.1 20.4 6007 2010 21.0 (b) Find a quadratic function f(x) = ax² + bx + c that models the data. %3D 2011 21.0 20.6 (c) Plot the data together with f in the same window. How well does f model enrollment? 2012 Source: National Center (d) Use f to estimate total enrollment in 2013 to the nearest tenth of a million. w for Education Statistics. , and 21.
According to data from the National Highway Traffic Safety Admin- the accident rate as a function of the age of the driver in years x can be approximated by the function istration, f(x) = 0.0232x² – 2.28x + 60.0, for 16 < x< 85. Find both the age at which the accident rate is a minimum and the minimum rate to the nearest hundredth. 73/College Bhrollment The table lists total fall enroll- ments in degree-granting postsecondary colleges in the United States for selected years. (a) Plot the data. Let x = 0 correspond to the year 2008. Enrollment Year (in millions) 2008 19.1 20.4 6007 2010 21.0 (b) Find a quadratic function f(x) = ax² + bx + c that models the data. %3D 2011 21.0 20.6 (c) Plot the data together with f in the same window. How well does f model enrollment? 2012 Source: National Center (d) Use f to estimate total enrollment in 2013 to the nearest tenth of a million. w for Education Statistics. , and 21.
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
Section4.1: Quadratic Functions
Problem 6SC: A company that makes and sells baseball caps has found that the total monthly cost C in dollars of...
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Solve no 73
Transcribed Image Text:According to data from the National Highway Traffic Safety Admin-
the accident rate as a function of the age of the driver in years x can be
approximated by the function
istration,
f(x) = 0.0232x² – 2.28x + 60.0, for 16 < x< 85.
Find both the age at which the accident rate is a minimum and the minimum rate to
the nearest hundredth.
73/College Bhrollment The table lists total fall enroll-
ments in degree-granting postsecondary colleges in the
United States for selected years.
(a) Plot the data. Let x = 0 correspond to the year 2008.
Enrollment
Year (in millions)
2008
19.1
20.4
6007
2010
21.0
(b) Find a quadratic function f(x) = ax² + bx + c that
models the data.
%3D
2011
21.0
20.6
(c) Plot the data together with f in the same window.
How well does f model enrollment?
2012
Source: National Center
(d) Use f to estimate total enrollment in 2013 to the
nearest tenth of a million. w
for Education Statistics.
, and 21.
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