Concept explainers
a.
To write a function for the rectangular area
a.
Answer to Problem 67E
The function for the rectangular area
Explanation of Solution
Given information:
A steel wire is
Formula used:
The following formula is used;
Calculation :
The length of the rectangle enclosed by the sign holder will be
The area of the rectangle is calculated by multiplying its length and breadth.
The function for area can be written as:
Hence, the function for the rectangular area
b.
To determine the value of
b.
Answer to Problem 67E
The value
Explanation of Solution
Given information:
A steel wire is
The function for the rectangular area
Formula used:
The following formula is used:
Calculation :
In the given function,
The function has a maximum value when
The value of
Hence, the value
Chapter 2 Solutions
Precalculus with Limits: A Graphing Approach
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