Concept explainers
a.
To use : a regression feature of a graphing utility to find a logarithmic model, an exponential model and a power model for the data
a.
Answer to Problem 28CT
The logarithmic model is
Explanation of Solution
Given information : The question is
Let
Calculation :
Using the graphing utility
The logarithmic model
Exponential model
Power model
b.
To use : the graphing utility to graph the model
b.
Explanation of Solution
Given information : The data is shown below
Graph : Sketch the graph using graphing utility.
Step 1: Press WINDOW button to access the Window editor.
Step 2: Press
Step 3: Enter the expression
Step 4: Press
The graph is obtained as:
c.
which model best fits the data
c.
Answer to Problem 28CT
The exponential model best fits the data
Explanation of Solution
Given information : The question is
To use model to predict the revenue of Amazon.com in
Calculation :
The exponential model because the closer
Chapter 3 Solutions
Precalculus with Limits: A Graphing Approach
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- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning