Concept explainers
a.
To find: The inverse of the function
a.
Answer to Problem 20PPS
Explanation of Solution
Given information: The function for total monthly cost is
Calculation:
Let the
Now, swap the variables,
Solve it for y to get inverse function.
Subtract both sides 50.
Divide both sides by 12.
Simplify it,
So, the inverse function is (replace y as
b.
To find: The quantities represented by x and
b.
Answer to Problem 20PPS
In the inverse function, x represents total monthly cost and
Explanation of Solution
Given information: A function for total monthly cost
While finding the inverse of a function all x are replaced as
c.
To find: The total number of hours spent on riding for the total cost is $338.
c.
Answer to Problem 20PPS
Number of hours spent is 24 hours.
Explanation of Solution
Given information: In this context
Calculation:
Plug in
Subtract both sides 50,
Divide both sides by 12.
Conclusion: Number of hours spent is 24 hours.
Chapter 4 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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