A tennis club offers two payment options. Members can pay a monthly fee of $18 plus $5 per hour for court rental time. The second option has no monthly fee, but court time costs $6.50 per hour. Answer parts a through d. a. Write a linear function that models the total monthly costs for each option for x hours of court rental time. The linear function that models total monthly cost for the first payment option is f(x) = [ (Type an expression using x as the variable. Use integers or decimals for any pembers in the expression.)

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
icon
Related questions
Question
Like the example i attached you have to solve all parts of highlighted question
K
A tennis club offers two payment options. Members can pay a monthly fee of $18 plus $5 per hour for court rental
time. The second option has no monthly fee, but court time costs $6.50 per hour. Answer parts a through d.
a. Write a linear function that models the total monthly costs for each option for x hours of court rental time.
The linear function that models total monthly cost for the first payment option is f(x) = [
(Type an expression using x as the variable. Use integers or decimals for any numbers in the expression.)
Transcribed Image Text:K A tennis club offers two payment options. Members can pay a monthly fee of $18 plus $5 per hour for court rental time. The second option has no monthly fee, but court time costs $6.50 per hour. Answer parts a through d. a. Write a linear function that models the total monthly costs for each option for x hours of court rental time. The linear function that models total monthly cost for the first payment option is f(x) = [ (Type an expression using x as the variable. Use integers or decimals for any numbers in the expression.)
A tennis club offers two payment options. Members can pay a monthly fee of $18 plus $8 per hour for court
rental time. The second option has no monthly fee, but court time costs $9.50 per hour. Answer parts a
through d.
a. Write a linear function that models total monthly costs for each option for x hours of court rental time.
Begin with the first payment option. The plan includes a monthly fee of $18 plus $8 per hour for court rental
time. If the per-hour cost of the court rental time is $8, the rental cost of x hours is 8x.
In addition, the member has to pay a monthly fee of $18.
Thus, the linear function that models the total monthly cost of the first payment option is f(x) = 8x + 18.
Now find the function for the monthly cost of the second option. Note that there is no monthly fee in the
second option, but the court time costs $9.50 per hour.
Thus, the linear function that models total monthly cost of the second payment option is g(x) = 9.5x.
b. Use a graphing utility to graph the two functions in a [0, 15, 1] by [0, 120, 20] viewing rectangle.
Graph f(x) = 8x + 18 and g(x) = 9.5x on the same graphing window.
The correct graph of the functions is shown to the right.
✓
c. Use your utility's trace or intersection feature to determine where the two graphs intersect. Describe what
the coordinates of this intersection point represent in practical terms.
The two graphs intersect at the point (12,114).
The first coordinate of the ordered pair represents the hours of court rental time and the second coordinate
represents the cost of the plan.
Thus, the coordinates of the point (12,114) indicate that for 12 hours of court rental time, the cost of both
plans is $114.
Q
d. Verify part c using an algebraic approach by setting the two functions equal to each other and determining
how many hours one has to rent the court so that the two plans result in identical monthly costs.
Set the two functions f(x) = 8x + 18 and g(x) = 9.5x equal to get the equation in terms of x.
9.5x = 8x +18
Now solve this equation for x to get the number of hours of court rental so that the two plans result in
identical monthly costs.
9.5x8x+18
9.5x8x8x + 18-8x
1.5x = 18
Divide both sides of the equation by 1.5.
1.5x = 18
x = 12
Subtract 8x from both sides.
Combine like terms.
Simplify.
Thus, one has to rent the court for 12 hours so that the two plans result in identical monthly costs. This
verifies the result obtained in part c.
Transcribed Image Text:A tennis club offers two payment options. Members can pay a monthly fee of $18 plus $8 per hour for court rental time. The second option has no monthly fee, but court time costs $9.50 per hour. Answer parts a through d. a. Write a linear function that models total monthly costs for each option for x hours of court rental time. Begin with the first payment option. The plan includes a monthly fee of $18 plus $8 per hour for court rental time. If the per-hour cost of the court rental time is $8, the rental cost of x hours is 8x. In addition, the member has to pay a monthly fee of $18. Thus, the linear function that models the total monthly cost of the first payment option is f(x) = 8x + 18. Now find the function for the monthly cost of the second option. Note that there is no monthly fee in the second option, but the court time costs $9.50 per hour. Thus, the linear function that models total monthly cost of the second payment option is g(x) = 9.5x. b. Use a graphing utility to graph the two functions in a [0, 15, 1] by [0, 120, 20] viewing rectangle. Graph f(x) = 8x + 18 and g(x) = 9.5x on the same graphing window. The correct graph of the functions is shown to the right. ✓ c. Use your utility's trace or intersection feature to determine where the two graphs intersect. Describe what the coordinates of this intersection point represent in practical terms. The two graphs intersect at the point (12,114). The first coordinate of the ordered pair represents the hours of court rental time and the second coordinate represents the cost of the plan. Thus, the coordinates of the point (12,114) indicate that for 12 hours of court rental time, the cost of both plans is $114. Q d. Verify part c using an algebraic approach by setting the two functions equal to each other and determining how many hours one has to rent the court so that the two plans result in identical monthly costs. Set the two functions f(x) = 8x + 18 and g(x) = 9.5x equal to get the equation in terms of x. 9.5x = 8x +18 Now solve this equation for x to get the number of hours of court rental so that the two plans result in identical monthly costs. 9.5x8x+18 9.5x8x8x + 18-8x 1.5x = 18 Divide both sides of the equation by 1.5. 1.5x = 18 x = 12 Subtract 8x from both sides. Combine like terms. Simplify. Thus, one has to rent the court for 12 hours so that the two plans result in identical monthly costs. This verifies the result obtained in part c.
Expert Solution
steps

Step by step

Solved in 5 steps with 6 images

Blurred answer
Recommended textbooks for you
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781285741550
Author:
James Stewart
Publisher:
Cengage Learning
Thomas' Calculus (14th Edition)
Thomas' Calculus (14th Edition)
Calculus
ISBN:
9780134438986
Author:
Joel R. Hass, Christopher E. Heil, Maurice D. Weir
Publisher:
PEARSON
Calculus: Early Transcendentals (3rd Edition)
Calculus: Early Transcendentals (3rd Edition)
Calculus
ISBN:
9780134763644
Author:
William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher:
PEARSON
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781319050740
Author:
Jon Rogawski, Colin Adams, Robert Franzosa
Publisher:
W. H. Freeman
Precalculus
Precalculus
Calculus
ISBN:
9780135189405
Author:
Michael Sullivan
Publisher:
PEARSON
Calculus: Early Transcendental Functions
Calculus: Early Transcendental Functions
Calculus
ISBN:
9781337552516
Author:
Ron Larson, Bruce H. Edwards
Publisher:
Cengage Learning