
Concept explainers
a.
To find : the inverse function.
a.

Answer to Problem 118E
The inverse function is
Explanation of Solution
Given information :
The function is
Where
calculation : to find the inverse function , subtract and divide
Here xrepresent the total wage of per hour, and
b.
To graph : the function and its inverse function by using graphing utility.
b.

Explanation of Solution
Given information :
The function is
Graph : Sketch the graph using graphing utility.
Step 1: Press WINDOW button to access the Window editor.
Step 2: Press
Step 3: Enter the expression
Step 4: Press GRAPH button to graph the function.
The graph is obtained as:
Interpretation: from the above graph it can be observed that the graph of function and inverse function are reflection of each other in the line
c.
To find : the hourly wage when
c.

Answer to Problem 118E
The hourly wage when
Explanation of Solution
Given information :
Calculation : by using graphing utility it can be observed that the hourly rate when
d.
To find : the number of units produced per hour when hourly wage is
d.

Answer to Problem 118E
the number of units are
Explanation of Solution
Given information :
Calculation : by using graphing utility it can be observed that the number of units are
Chapter 1 Solutions
Precalculus with Limits: A Graphing Approach
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