
(a)
The cubic model for the provided data by using the regression feature of a graphing utility.
(b)
To graph: The plot of the provided data and the model in the same viewing window by the use of graphing utility.
(c)
To calculate: The function
(d)
To graph: The function
(e)
To calculate: The average price in the year 2015 for both the models and also determine whether the obtained answers are same.
(f)
Whether the answers obtained in part (e) seems reasonable. Also give explanation.
(g)
The factors which contribute to change in the average price.

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Chapter 8 Solutions
College Algebra Real Mathematics Real People Edition 7
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