Concept explainers
a.
To use : the regression feature to find a power model for the data and identify the coefficient of determination for each model
a.
Answer to Problem 31E
The power model is
Explanation of Solution
Given information : The question is
The table provided in the question is shown below
Calculation :
Using the graphing utility
Exponential model
The power model
b.
To use: the graphing utility to graph the data
b.
Explanation of Solution
Given information : The question is
The table provided in the question 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 data.
Step 4: Press
The graph is obtained as:
c.
which model fits better for the data
c.
Answer to Problem 31E
The exponential model fits better for the data
Explanation of Solution
Given information : The question is
The table provided in the question is shown below
The exponential model is better because its coefficient of determination is closer to
Chapter 3 Solutions
Precalculus with Limits: A Graphing Approach
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