Concept explainers
a.
To find: a linear model for the value V of the sedan.
a.
Answer to Problem 41E
Linear model is
Explanation of Solution
Given information: A new 2018 luxury sedan that sold for $41,820 has a book value V .
of $26,765 after 2 years .
Calculation:
Find the slope through the points (0, 41820) and (2, 26765).
The V −intercept is (0, 41820). So the linear model is
b.
To find: an exponential model for the value V of the sedan and round the numbers in the model to four decimal places.
b.
Answer to Problem 41E
Explanation of Solution
Given information: A new 2018 luxury sedan that sold for $41,820 has a book value V .
of $26,765 after 2 years.
Calculation:
Use the point (0, 41820) to find a .
c.
To graph: the two models in the same viewing window.
c.
Answer to Problem 41E
Explanation of Solution
Given information: Given models are
Calculation:
The graph of the two models in the same window is shown below.
d.
To find: which model represents a greater depreciation rate in the first year.
d.
Answer to Problem 41E
The exponential model has a greater depreciation rate in the first year.
Explanation of Solution
Given information:
Calculation:
The exponential model has a greater depreciation rate in the first year.
e.
To find: for what years is the value of the sedan greater using the linear model, the exponential model.
e.
Answer to Problem 41E
Using the graph, the linear model predicts a greater value for almost two full years
(0 < t < 2).
The exponential model predicts a greater value after about two years ( t
Explanation of Solution
Given information:
Calculation:
Using the graph, the linear model predicts a greater value for almost two full years
(0 < t < 2).
The exponential model predicts a greater value after about two years ( t
Chapter 3 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning