Concept explainers
(a)
To find: The average rate of change of revenue from
(a)
Answer to Problem 39RE
Explanation of Solution
Given: The following data represent the Revenue R ( in dollars) received from selling x wristwatches at Wilk’s Watch Shop.
The average rate of change is change in R over change in x.
Average rate of change
(b)
To find: The average rate of change of revenue from
(b)
Answer to Problem 39RE
Explanation of Solution
Given: The following data represent the Revenue R ( in dollars) received from selling x wristwatches at Wilk’s Watch Shop.
The average rate of change is change in R over change in x.
Average rate of change
(c)
To find: The average rate of change of revenue from
(c)
Answer to Problem 39RE
Explanation of Solution
Given: The following data represent the Revenue R ( in dollars) received from selling x wristwatches at Wilk’s Watch Shop.
The average rate of change is change in R over change in x.
Average rate of change
(d)
To find: The quadratic best fit of the given data using graphing utility.
(d)
Answer to Problem 39RE
Explanation of Solution
Given: The following data represent the Revenue R ( in dollars) received from selling x wristwatches at Wilk’s Watch Shop.
Using graphing utility plot the points and draw graph.
The quadratic best fit of given data using graphing utility is
Where, R is revenue when x number of wristwatches sold.
(e)
To find: The instantaneous rate of Revenue at
(e)
Answer to Problem 39RE
Explanation of Solution
Given:
The Revenue function is
First differentiate w.r.t x
At
Hence, the instantaneous rate of Revenue is
Chapter 14 Solutions
Precalculus Enhanced with Graphing Utilities
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Glencoe Math Accelerated, Student Edition
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