The rational function f ( x ) = 27 , 725 ( x − 14 ) x 2 + 9 − 5 x models the- number of arrests. f(x), per 100,000 drivers, for driving under the influence of alcohol, as a function of a driver's age, x . a. Graph the fund ion in a [0, 70. 5] by [0. 400, 20] viewing rectangle. b. Describe the trend shown by the graph. c. Use the ZOOM and TRACE features or the maximum function feature of your graphing utility lo find the age (hat corresponds lo the greatest number of arrests. How many arrests, per 100,000 drivers, are there for this age group?
The rational function f ( x ) = 27 , 725 ( x − 14 ) x 2 + 9 − 5 x models the- number of arrests. f(x), per 100,000 drivers, for driving under the influence of alcohol, as a function of a driver's age, x . a. Graph the fund ion in a [0, 70. 5] by [0. 400, 20] viewing rectangle. b. Describe the trend shown by the graph. c. Use the ZOOM and TRACE features or the maximum function feature of your graphing utility lo find the age (hat corresponds lo the greatest number of arrests. How many arrests, per 100,000 drivers, are there for this age group?
Solution Summary: The author explains how the rational function f(x) models the number of arrests per 100,000 drivers for driving under the influence.
models the- number of arrests. f(x), per 100,000 drivers, for driving under the influence of alcohol, as a function of a driver's age, x.
a. Graph the fund ion in a [0, 70. 5] by [0. 400, 20] viewing rectangle.
b. Describe the trend shown by the graph.
c. Use the
ZOOM
and
TRACE
features or the maximum function feature of your graphing utility lo find the age (hat corresponds lo the greatest number of arrests. How many arrests, per 100,000 drivers, are there for this age group?
Listen
A falling object travels a distance given by the formula d = 6t + 9t2 where d is in feet
and t is the time in seconds. How many seconds will it take for the object to travel
112 feet? Round answer to 2 decimal places. (Write the number, not the units).
Your Answer:
Solve by the quadratic formula or completing the square to obtain exact solutions.
2
e
104
OA) -16±3√6
B) 8±√10
O c) -8±√10
OD) 8±3√√6
U
Question 14 (1 point)
Listen
The frame on a picture is 18 in by 22 in outside and is of uniform width. Using
algebraic methods, what is the width of the frame if the inner area of the picture
shown is 250 in²2? Write answer to 2 decimal places. (Write the number with no
units).
18 in
Your Answer:
22 in
Chapter 3 Solutions
Algebra And Trigonometry 6th. Edition Annotated Instructor's Copy Blitzer
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