Concept explainers
a.
To write and graph the rational function representing Kristina’s average monthly cost as a function of number of months she uses the phone
a.
Answer to Problem 37PPS
The rational function that represents Liam’s average cost per customer as a function of number of parking lots is
Explanation of Solution
Given information:
Kristina bought a new cell phone cost $150 with internet access.
Her monthly usage charge is $30 plus $10 for the internet access
Asume that the number of months kristina uses her phone as
Thus, the total cost on usage of cell phone is
This means that the average cost for
Therefore, the rational function that represents Kristina’s average monthly cost as a function of the number of months she uses the phone is,
The graph of the function can be represented as,
b.
To find out the asymptotes of the graph
b.
Answer to Problem 37PPS
The vertical asymptote is
Explanation of Solution
Given information:
Kristina bought a new cell phone cost $150 with internet access.
Her monthly usage charge is $30 plus $10 for the internet access
The rational function that represents Kristina’s average monthly cost as a function of the number of months she uses the phone is,
To find the vertical asymptotes, set the denominator equal to zero
So, put
Therefore, the vertical asymptote is
c.
To explain why the first quadrant in the graph is the only relevant quadrant
c.
Answer to Problem 37PPS
The first quadrant in the graph is only relevant because
Explanation of Solution
Given information:
Kristina bought a new cell phone cost $150 with internet access.
Her monthly usage charge is $30 plus $10 for the internet access
At first note that the number of months Kristina uses the phone is
Therefore, it can be said that only first quadrant is relevant because
d.
To find out that after how many months the average monthly charge will be $45
d.
Answer to Problem 37PPS
The average monthly cost will be $45 after 30 months
Explanation of Solution
Given information:
Kristina bought a new cell phone cost $150 with internet access.
Her monthly usage charge is $30 plus $10 for the internet access
The average monthly cost is given by the function
To find the number of months it will take for the monthly average cost to be $45, set
Now the solution for
Therefore, the average monthly cost will be $45 after 30 months
Chapter 8 Solutions
Glencoe Algebra 2 Student Edition C2014
Additional Math Textbook Solutions
College Algebra
College Algebra
Linear Algebra and Its Applications (5th Edition)
College Algebra (7th Edition)
Introductory Statistics (10th Edition)
- 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