
Concept explainers
(a)
To find: The average rate of change of the number of digital cameras sold from 2004 to 2009.
(a)

Answer to Problem 3CYU
The average rate of change of the number of digital cameras sold from 2004 to 2009 is 11,000 per year.
Explanation of Solution
Given:
The graph given graph is as follows.
Calculation:
Use the ordered pair
Find the rate of change as follows.
Therefore, the average rate of change is 11,000 per year.
(b)
To find: The average rate of change of the number of film cameras sold from 2004 to 2009.
(b)

Answer to Problem 3CYU
The average rate of change of the number of film cameras sold from 2004 to 2009 is
Explanation of Solution
Given:
The graph given graph is as follows.
Calculation:
Use the ordered pair
Find the rate of change as follows.
Therefore, the average rate of change is
(c)
To find: The representation of sign for each rate of change.
(c)

Answer to Problem 3CYU
The average rate of change of the number of film cameras sold from 2004 to 2009 is
Explanation of Solution
In the first part, the positive rate represents an increase in the sales of digital cameras and in second part, the negative rate represents a decrease in the sales of film cameras.
Therefore, the positive rate represents an increase in the sales of digital cameras and negative rate represents a decrease in the sales of film cameras.
Chapter 2 Solutions
Glencoe Algebra 2 Student Edition C2014
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