Concept explainers
a.
To use : the regression feature of a graphing utility to find a linear model, an exponential model and a power model and identify the coefficient of determination for each model
a.
Answer to Problem 133RE
The linear model is
Explanation of Solution
Given information : The data is
Calculation :
Using a graphing utility
Linear model
Exponential model
Power model
b.
To use : the graphing utility to graph the data
b.
Explanation of Solution
Given information : The data is
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 best fits to data
c.
Answer to Problem 133RE
The linear model best fits to data
Explanation of Solution
Given information : The data is
The linear model best fits to data because the closer
d.
To predict : the school year in which about
d.
Answer to Problem 133RE
The
Explanation of Solution
Given information : The data is
Calculation :
Chapter 3 Solutions
Precalculus with Limits: A Graphing Approach
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