8. A math teacher adopts the following function to curve her students' midterm grades: f(x) = 10√x where x is the original midterm grade and f(x) is the improved midterm grade after the curve function is applied. a. Find the curved grade if a student scored 64 on the midterm. b. Find the curved grade if a student scored 81 on the midterm. c. Provide an example of a student's midterm grade in which the function will fail to improve the grade.

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

8.)

8. A math teacher adopts the following function to curve her students' midterm grades:

\[ f(x) = 10 \sqrt{x} \]

where \( x \) is the original midterm grade and \( f(x) \) is the improved midterm grade after the curve function is applied.

a. Find the curved grade if a student scored 64 on the midterm.

b. Find the curved grade if a student scored 81 on the midterm.

c. Provide an example of a student's midterm grade in which the function will fail to improve the grade.

d. The following graph displays the curve function \( f(x) = 10 \sqrt{x} \) in red as well as the non-curve function \( g(x) = x \) in blue. Based on the graph, do you think this curve system is fair to all students? Why or why not?

**Graph Description:**

- The graph is plotted with two lines: a red curve representing \( f(x) = 10 \sqrt{x} \) and a blue line representing \( g(x) = x \).
- The x-axis and y-axis both range from 0 to 100, each increment marked by a 10-unit grid.
- The origin (0,0) and the point (100,100) are specifically labeled. 
- The red curve starts at (0,0) and rises gradually, becoming steeper as it approaches (100,100), indicating the effect of the curve. 
- The blue line is a straight diagonal from (0,0) to (100,100), representing the original grades without a curve.

The graph illustrates how the red curve elevates the grades, especially at the lower end of the scale, while converging with the blue line at the higher end.
Transcribed Image Text:8. A math teacher adopts the following function to curve her students' midterm grades: \[ f(x) = 10 \sqrt{x} \] where \( x \) is the original midterm grade and \( f(x) \) is the improved midterm grade after the curve function is applied. a. Find the curved grade if a student scored 64 on the midterm. b. Find the curved grade if a student scored 81 on the midterm. c. Provide an example of a student's midterm grade in which the function will fail to improve the grade. d. The following graph displays the curve function \( f(x) = 10 \sqrt{x} \) in red as well as the non-curve function \( g(x) = x \) in blue. Based on the graph, do you think this curve system is fair to all students? Why or why not? **Graph Description:** - The graph is plotted with two lines: a red curve representing \( f(x) = 10 \sqrt{x} \) and a blue line representing \( g(x) = x \). - The x-axis and y-axis both range from 0 to 100, each increment marked by a 10-unit grid. - The origin (0,0) and the point (100,100) are specifically labeled. - The red curve starts at (0,0) and rises gradually, becoming steeper as it approaches (100,100), indicating the effect of the curve. - The blue line is a straight diagonal from (0,0) to (100,100), representing the original grades without a curve. The graph illustrates how the red curve elevates the grades, especially at the lower end of the scale, while converging with the blue line at the higher end.
Expert Solution
steps

Step by step

Solved in 4 steps with 4 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