
Concept explainers
To find: type of function, its value and draw its graph for the given situation.

Answer to Problem 9CFU
The given function is step function
Explanation of Solution
Given information:
Repairing cost = $50 per hour or fraction thereof
The fraction here means 59 minutes 59 seconds over 1 hour.
Calculation:
Let the repaired cost be c and number of hours be h. Since, c is charged in increments of $50, irrespective of the hour used. So, it is a step function.
As the repaired cost would not be greater than,
Put the values of h in the function and create a table as follows:
1 | 2 | 3 | 4 | 5 | 6 | |
50 | 100 | 150 | 200 | 250 | 300 |
The graph for the above function is shown below.
Chapter 1 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
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