Concept explainers
(a)
Find the inverse of the given model. Describe what information you can obtain from the inverse.
Given information:
At the start of a dog sled race in Anchorage, Alaska, the temperature was
Concept used:
In order to find the inverse of a function
Step 1: interchange x and y in the given function
Step 2: solve for y and that will give the required inverse function
Calculation:
The inverse of
Thus the inverse of the given function
From the inverse we obtained that adding 32 with 9/5 times Fahrenheit (F) temperature gives the degree Celsius (C) temperature.
(b)
Find the Fahrenheit temperatures at the start and end of the race.
Fahrenheit temperatures at the start
Fahrenheit temperatures at the end
Given information:
At the start of a dog sled race in Anchorage, Alaska, the temperature was
Concept used:
In order to find the inverse of a function
Step 1: interchange x and y in the given function
Step 2: solve for y and that will give the required inverse function
Calculation:
At the start the temperature was
Fahrenheit temperatures at the start −
At the end the temperature was
Fahrenheit temperatures at the start −
(c)
Use a graphic calculator to graph the original function and its inverse. Find the temperature that is the same on both temperature scales.
At -40 both temperature scales are same,
Given information:
At the start of a dog sled race in Anchorage, Alaska, the temperature was
Concept used:
In order to find the inverse of a function
Step 1: interchange x and y in the given function
Step 2: solve for y and that will give the required inverse function
Calculation:
The graph of
At
Chapter 3 Solutions
Holt Mcdougal Larson Algebra 2: Student Edition 2012
- Algebra and Trigonometry (6th Edition)AlgebraISBN:9780134463216Author:Robert F. BlitzerPublisher:PEARSONContemporary Abstract AlgebraAlgebraISBN:9781305657960Author:Joseph GallianPublisher:Cengage LearningLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning
- Algebra And Trigonometry (11th Edition)AlgebraISBN:9780135163078Author:Michael SullivanPublisher:PEARSONIntroduction to Linear Algebra, Fifth EditionAlgebraISBN:9780980232776Author:Gilbert StrangPublisher:Wellesley-Cambridge PressCollege Algebra (Collegiate Math)AlgebraISBN:9780077836344Author:Julie Miller, Donna GerkenPublisher:McGraw-Hill Education