
Concept explainers
a.
To find: where f is increasing.
a.

Answer to Problem 22E
f is increasing on the interval [-1,2] .
Explanation of Solution
Given information: the graph provided in the question,
From the provided information, consider,
As f increases the height if the function f ( x ) also increases, thus, y-values of the points on the graph increase as the x-values increase. In the graph provided, f is increasing on the interval [-1,2]
Hence, f is increasing on the interval [-1,2] .
b.
To find: where f is decreasing.
b.

Answer to Problem 22E
f is decreasing on the intervals [1,2] and [1,-2].
Explanation of Solution
Given information: the graph provided in the question,
From the provided information, consider,
As f decreases, the height if the function f ( x ) also decreases, thus, y-values of the points on the graph decreases as the x-values increase. In the graph provided, f is decreasing on the intervals [1,2] and [1,-2].
Hence, f is decreasing on the intervals [1,2] and [1,-2].
Chapter 2 Solutions
EBK PRECALCULUS: MATHEMATICS FOR CALCUL
- 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





