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Loraine is enrolled in an algebra class that meets 5 days per week. Her instructor gives a test every Friday. Loraine has a study plan and keeps a portfolio with notes, homework, test corrections, and vocabulary. She also records the amount of time per day that she studies and does homework. The following data represent the amount of time she studied per day and her weekly test grades. Time Studied per Day Weekly Test Grade (min) (percent) y 60 72 70 74 80 76 90 78 100 80

Loraine is enrolled in an algebra class that meets 5 days per week. Her instructor gives a test every Friday. Loraine has a study plan and keeps a portfolio with notes, homework, test corrections, and vocabulary. She also records the amount of time per day that she studies and does homework. The following data represent the amount of time she studied per day and her weekly test grades. Time Studied per Day Weekly Test Grade (min) (percent) y 60 72 70 74 80 76 90 78 100 80

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
ChapterP: Prologue: Calculator Arithmetic
Section: Chapter Questions
Problem 1E: Valentines Day According to the National Retail Federation, on Valentines Day 2015, American men...
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Part 3 of 5 (b) Find a linear equation that relates Loraine's weekly test score y to the amount of time she studies per day x. Express numbers in exact simplest form. (Hint: Pick two ordered pairs from the observed data and find an equation of the line through the points.) The linear equation in slope-intercept form (y=mx+b) is 0=0 X Ś
Transcribed Image Text:Part 3 of 5 (b) Find a linear equation that relates Loraine's weekly test score y to the amount of time she studies per day x. Express numbers in exact simplest form. (Hint: Pick two ordered pairs from the observed data and find an equation of the line through the points.) The linear equation in slope-intercept form (y=mx+b) is 0=0 X Ś
Oo Loraine is enrolled in an algebra class that meets 5 days per week. Her instructor gives a test every Friday. Loraine has a study plan and keeps a portfolio with notes, homework, test corrections, and vocabulary. She also records the amount of time per day that she studies and does homework. The following data represent the amount of time she studied per day and her weekly test grades. → Time Studied per Day Weekly Test Grade (min) (percent) B X y 60 72 70 74 80 76 90 78 100 80 8
Transcribed Image Text:Oo Loraine is enrolled in an algebra class that meets 5 days per week. Her instructor gives a test every Friday. Loraine has a study plan and keeps a portfolio with notes, homework, test corrections, and vocabulary. She also records the amount of time per day that she studies and does homework. The following data represent the amount of time she studied per day and her weekly test grades. → Time Studied per Day Weekly Test Grade (min) (percent) B X y 60 72 70 74 80 76 90 78 100 80 8
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Part 4 of 5 (c) How many minutes should Loraine study per day in order to score at least 90% on her weekly examination? Would the equation used to determine the time Loraine needs to study to get 90% work for other students? Why or why not? minutes per day in order to receive at least 90% According to the linear model, Loraine would have to study at least on her weekly examination. × Ś This model (Choose one) appropriate for other students.
Transcribed Image Text:Part 4 of 5 (c) How many minutes should Loraine study per day in order to score at least 90% on her weekly examination? Would the equation used to determine the time Loraine needs to study to get 90% work for other students? Why or why not? minutes per day in order to receive at least 90% According to the linear model, Loraine would have to study at least on her weekly examination. × Ś This model (Choose one) appropriate for other students.
Oo Loraine is enrolled in an algebra class that meets 5 days per week. Her instructor gives a test every Friday. Loraine has a study plan and keeps a portfolio with notes, homework, test corrections, and vocabulary. She also records the amount of time per day that she studies and does homework. The following data represent the amount of time she studied per day and her weekly test grades. → Time Studied per Day Weekly Test Grade (min) (percent) B X y 60 72 70 74 80 76 90 78 100 80 8
Transcribed Image Text:Oo Loraine is enrolled in an algebra class that meets 5 days per week. Her instructor gives a test every Friday. Loraine has a study plan and keeps a portfolio with notes, homework, test corrections, and vocabulary. She also records the amount of time per day that she studies and does homework. The following data represent the amount of time she studied per day and her weekly test grades. → Time Studied per Day Weekly Test Grade (min) (percent) B X y 60 72 70 74 80 76 90 78 100 80 8
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