
Concept explainers
a.
Represent annual sales with the slopes of lines.
a.

Answer to Problem 87E
The annual sale increases by
Explanation of Solution
Given information:
The following are the slopes of lines representing annual sales
The line has a slope of
Calculation:
The line has a slope of
This represent that as one year passes the annual sale increases by
Hence the annual sale increases by
b.
Represent annual sales with the slopes of lines.
b.

Answer to Problem 87E
The annual sale increases by
Explanation of Solution
Given information:
The following are the slopes of lines representing annual sales
The line has a slope of
Calculation:
The line has a slope of
This represent that as one year passes the annual sale increases by
Hence the annual sale increases by
c.
Represent annual sales with the slopes of lines.
c.

Answer to Problem 87E
The annual sale decreases by
Explanation of Solution
Given information:
The following are the slopes of lines representing annual sales
The line has a slope of
Calculation:
The line has a slope of
This represent that as one year passes the annual sale decreases by
Hence the annual sale decreases by
Chapter 1 Solutions
EBK PRECALCULUS W/LIMITS
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