   Chapter 10.4, Problem 54E Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
ISBN: 9781337274203

Solutions

Chapter
Section Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
ISBN: 9781337274203
Textbook Problem

SAT Scores by Income Repeat Exercise 53 using the following model for the critical reading SAT score of a high school graduate: S ( x ) = 550 − 136 ( 0.985 ) x pointson the critical reading SAT test, where x is the household income of the student in thousands of dollars per year.55

(a)

To determine

To calculate: The values of average rate of change of S over successive intervals and complete the table contains math SAT score for the critical reading of a high school graduate which can be approximated by S(x)=550136(0.985)x points on the critical reading SAT test, where x is the household income of the student in thousand dollars per year.

 Interval [0,40] [40,80] [80,120] [120,160] [160,200] Avg. Rate of Change of S
Explanation

Given Information:

The table contains math SAT score of a high school graduate which can be approximated by S(x)=550136(0.985)x points on the critical reading SAT test, where x is the household income of the student in thousand dollars per year.

 Interval [0,40] [40,80] [80,120] [120,160] [160,200] Avg. Rate of Change of S

Calculation:

Consider the interval.

Steps to calculate the average rate of change using Excel Spread sheet as follows:

Step1. Name cells A1, B1 and C1 as x, S(x) and Avg. Rate of change respectively.

Step2. Enter the values of x through cells A2 to A7.

Step3. Click on B2 and add the formula “=550136×(0.985)^A2” in the formula tab and drag the formula to the cells through B2 to B7

(b)

To determine

The interpretation of result obtained in part (a) for the interval [40,80] indicating direction of change and units of measurement if the table contains math SAT score of a high school graduate which can be approximated by S(x)=550136(0.985)x points on the SAT test, where x is the household income of the student in thousand dollars per year.

 Interval [0,40] [40,80] [80,120] [120,160] [160,200] Avg. Rate of Change of S 1.54 0.84 0.46 0.25 0.14

(c)

To determine

The correct option showing direction of SAT score of student, if the household income rises out of the following options.

The options are:

A) Increases.

B) Decreases.

C) Increases, then decreases.

D) Decreases, then increases

(d)

To determine

The correct option showing the effect on the SAT score of student, if the household income increases out of the following options.

The options are:

A) More pronounced.

B) Less pronounced.

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Find the derivative of the function. y=cosxsinxln(1+2v)dv

Single Variable Calculus: Early Transcendentals, Volume I

What is the complex conjugate of a complex number a + bi?

Precalculus: Mathematics for Calculus (Standalone Book)

Find the mean for the scores in the following frequency distribution table: X f 6 1 5 4 4 2 3 2 2 1

Essentials of Statistics for The Behavioral Sciences (MindTap Course List)

In problems 45-48, determine a value for that makes each statement true. 48.

Mathematical Applications for the Management, Life, and Social Sciences

The gradient vector field for is:

Study Guide for Stewart's Multivariable Calculus, 8th

An integral for the surface area obtained by rotating y = sin x + cos x, , about the x-axis is:

Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th 