Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
2nd Edition
ISBN: 9780076602919
Author: McGraw-Hill Education
Publisher: McGraw-Hill Education
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Chapter 4.4, Problem 19PFA
To determine

To find: the best equation which represents the data in the table.

Expert Solution & Answer
Check Mark

Answer to Problem 19PFA

The correct approximate equation is s=60+6h .

Explanation of Solution

Given information:

Given table,

  Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1), Chapter 4.4, Problem 19PFA

Given options are,

  S=40+15h

  S=60+6h

  S=55+10h

  S=80+3h

Calculation:

Given the table of the values

Study hours (h) = 0, 1, 2, 3, 4, 5, 6,

Exam score (s) = 55, 70, 83, 76, 87, 92, 90

    Sum of the exam score (s)Sum of the Study hours (h) meanSum of the exam score (s) meanProduct of (sum of study hours (h) mean)(sum of the exam score (s)mean)(study hours(h) mean) 2
    55(03)=3(5579)=243×24=72(03)2
    70(13)=2(7079)=92×9=18(13)2
    83(23)=1(8379)=41×4=4(23)2
    76(33)=0(7679)=30×3=0(33)2
    87(43)=1(8779)=81×8=8(43)2
    92(53)=2(9279)=132×13=26(53)2
    90(63)=3(9079)=113×11=33(63)2
    Sum = 553Sum of product = 153Sum = 28
    Mean = (553/7)=79

Regression equation y=bx+a

Now,

  b=15328=5.464296

Now,

  a=79(5.46×3)=62.6071460

And then,

  s=5.46429h+62.60714

Therefore, the correct approximate equation is s=60+6h .

Chapter 4 Solutions

Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)

Ch. 4.1 - Prob. 5CYUCh. 4.1 - Prob. 6CYUCh. 4.1 - Prob. 7CYUCh. 4.1 - Prob. 8CYUCh. 4.1 - Prob. 9CYUCh. 4.1 - Prob. 10PPSCh. 4.1 - Prob. 11PPSCh. 4.1 - Prob. 12PPSCh. 4.1 - Prob. 13PPSCh. 4.1 - Prob. 14PPSCh. 4.1 - Prob. 15PPSCh. 4.1 - Prob. 16PPSCh. 4.1 - Prob. 17PPSCh. 4.1 - Prob. 18PPSCh. 4.1 - Prob. 19PPSCh. 4.1 - Prob. 20PPSCh. 4.1 - Prob. 21PPSCh. 4.1 - Prob. 22PPSCh. 4.1 - Prob. 23PPSCh. 4.1 - Prob. 24PPSCh. 4.1 - Prob. 25PPSCh. 4.1 - Prob. 26PPSCh. 4.1 - Prob. 27PPSCh. 4.1 - Prob. 28PPSCh. 4.1 - Prob. 29PPSCh. 4.1 - Prob. 30PPSCh. 4.1 - Prob. 31PPSCh. 4.1 - Prob. 32PPSCh. 4.1 - Prob. 33PPSCh. 4.1 - Prob. 34PPSCh. 4.1 - Prob. 35PPSCh. 4.1 - Prob. 36PPSCh. 4.1 - Prob. 37PPSCh. 4.1 - Prob. 38PPSCh. 4.1 - Prob. 39PPSCh. 4.1 - Prob. 40PPSCh. 4.1 - Prob. 41PPSCh. 4.1 - Prob. 42PPSCh. 4.1 - Prob. 43PPSCh. 4.1 - Prob. 44PPSCh. 4.1 - Prob. 45PPSCh. 4.1 - Prob. 46PPSCh. 4.1 - Prob. 47HPCh. 4.1 - Prob. 48HPCh. 4.1 - Prob. 49HPCh. 4.1 - Prob. 50HPCh. 4.1 - Prob. 51HPCh. 4.1 - Prob. 52HPCh. 4.1 - Prob. 53PFACh. 4.1 - Prob. 54PFACh. 4.1 - Prob. 55PFACh. 4.1 - Prob. 56PFACh. 4.1 - Prob. 57PFACh. 4.1 - Prob. 58PFACh. 4.2 - Prob. 1GPCh. 4.2 - Prob. 2GPCh. 4.2 - Prob. 3AGPCh. 4.2 - Prob. 3BGPCh. 4.2 - Prob. 4AGPCh. 4.2 - Prob. 4BGPCh. 4.2 - Prob. 1CYUCh. 4.2 - Prob. 2CYUCh. 4.2 - Prob. 3CYUCh. 4.2 - Prob. 4CYUCh. 4.2 - Prob. 5CYUCh. 4.2 - Prob. 6CYUCh. 4.2 - Prob. 7CYUCh. 4.2 - Prob. 8CYUCh. 4.2 - Prob. 9CYUCh. 4.2 - Prob. 10CYUCh. 4.2 - Prob. 11CYUCh. 4.2 - Prob. 12CYUCh. 4.2 - Prob. 13PPSCh. 4.2 - Prob. 14PPSCh. 4.2 - Prob. 15PPSCh. 4.2 - Prob. 16PPSCh. 4.2 - Prob. 17PPSCh. 4.2 - Prob. 18PPSCh. 4.2 - Prob. 19PPSCh. 4.2 - Prob. 20PPSCh. 4.2 - Prob. 21PPSCh. 4.2 - Prob. 22PPSCh. 4.2 - Prob. 23PPSCh. 4.2 - Prob. 24PPSCh. 4.2 - Prob. 25PPSCh. 4.2 - Prob. 26PPSCh. 4.2 - Prob. 27PPSCh. 4.2 - Prob. 28PPSCh. 4.2 - Prob. 29PPSCh. 4.2 - Prob. 30PPSCh. 4.2 - Prob. 31PPSCh. 4.2 - Prob. 32PPSCh. 4.2 - Prob. 33PPSCh. 4.2 - Prob. 34PPSCh. 4.2 - Prob. 35PPSCh. 4.2 - Prob. 36PPSCh. 4.2 - Prob. 37PPSCh. 4.2 - Prob. 38PPSCh. 4.2 - Prob. 39PPSCh. 4.2 - Prob. 40PPSCh. 4.2 - Prob. 41PPSCh. 4.2 - Prob. 42HPCh. 4.2 - Prob. 43HPCh. 4.2 - Prob. 45HPCh. 4.2 - Prob. 46HPCh. 4.2 - Prob. 47HPCh. 4.2 - Prob. 48PFACh. 4.2 - Prob. 49PFACh. 4.2 - Prob. 50PFACh. 4.2 - Prob. 51PFACh. 4.2 - Prob. 52PFACh. 4.2 - Prob. 53PFACh. 4.2 - Prob. 54PFACh. 4.2 - Prob. 55PFACh. 4.3 - Prob. 1GPCh. 4.3 - Prob. 2GPCh. 4.3 - Prob. 3GPCh. 4.3 - Prob. 4GPCh. 4.3 - Prob. 1CYUCh. 4.3 - Prob. 2CYUCh. 4.3 - Prob. 3CYUCh. 4.3 - Prob. 4CYUCh. 4.3 - Prob. 5CYUCh. 4.3 - Prob. 6CYUCh. 4.3 - Prob. 7CYUCh. 4.3 - Prob. 8CYUCh. 4.3 - Prob. 9CYUCh. 4.3 - Prob. 10CYUCh. 4.3 - Prob. 11PPSCh. 4.3 - Prob. 12PPSCh. 4.3 - Prob. 13PPSCh. 4.3 - Prob. 14PPSCh. 4.3 - Prob. 15PPSCh. 4.3 - Prob. 16PPSCh. 4.3 - Prob. 17PPSCh. 4.3 - Prob. 18PPSCh. 4.3 - Prob. 19PPSCh. 4.3 - Prob. 20PPSCh. 4.3 - Prob. 21PPSCh. 4.3 - Prob. 22PPSCh. 4.3 - Prob. 23PPSCh. 4.3 - Prob. 24PPSCh. 4.3 - Prob. 25PPSCh. 4.3 - Prob. 26PPSCh. 4.3 - Prob. 27PPSCh. 4.3 - Prob. 28PPSCh. 4.3 - Prob. 29PPSCh. 4.3 - Prob. 30PPSCh. 4.3 - Prob. 31PPSCh. 4.3 - Prob. 32PPSCh. 4.3 - Prob. 33PPSCh. 4.3 - Prob. 34PPSCh. 4.3 - Prob. 35PPSCh. 4.3 - Prob. 36PPSCh. 4.3 - Prob. 37PPSCh. 4.3 - Prob. 38PPSCh. 4.3 - Prob. 39PPSCh. 4.3 - Prob. 40PPSCh. 4.3 - Prob. 41PPSCh. 4.3 - Prob. 42PPSCh. 4.3 - Prob. 43PPSCh. 4.3 - Prob. 44HPCh. 4.3 - Prob. 45HPCh. 4.3 - Prob. 46HPCh. 4.3 - Prob. 47HPCh. 4.3 - Prob. 48HPCh. 4.3 - Prob. 49PFACh. 4.3 - Prob. 50PFACh. 4.3 - Prob. 51PFACh. 4.3 - Prob. 52PFACh. 4.3 - Prob. 53PFACh. 4.3 - Prob. 54PFACh. 4.4 - Prob. 1GPCh. 4.4 - Prob. 2GPCh. 4.4 - Prob. 3GPCh. 4.4 - Prob. 1CYUCh. 4.4 - Prob. 2CYUCh. 4.4 - Prob. 3CYUCh. 4.4 - Prob. 4PPSCh. 4.4 - Prob. 5PPSCh. 4.4 - Prob. 6PPSCh. 4.4 - Prob. 7PPSCh. 4.4 - Prob. 8PPSCh. 4.4 - Prob. 9PPSCh. 4.4 - Prob. 10PPSCh. 4.4 - Prob. 11PPSCh. 4.4 - Prob. 14HPCh. 4.4 - Prob. 15HPCh. 4.4 - Prob. 16HPCh. 4.4 - Prob. 17HPCh. 4.4 - Prob. 18PFACh. 4.4 - Prob. 19PFACh. 4.4 - Prob. 20PFACh. 4.4 - Prob. 21PFACh. 4.4 - Prob. 22PFACh. 4.5 - Prob. 1AGPCh. 4.5 - Prob. 1BGPCh. 4.5 - Prob. 1CGPCh. 4.5 - Prob. 2AGPCh. 4.5 - Prob. 2BGPCh. 4.5 - Prob. 1CYUCh. 4.5 - Prob. 2CYUCh. 4.5 - Prob. 3CYUCh. 4.5 - Prob. 4PPSCh. 4.5 - Prob. 5PPSCh. 4.5 - Prob. 6PPSCh. 4.5 - Prob. 7PPSCh. 4.5 - Prob. 8PPSCh. 4.5 - Prob. 9PPSCh. 4.5 - Prob. 10PPSCh. 4.5 - Prob. 11PPSCh. 4.5 - Prob. 12PPSCh. 4.5 - Prob. 13PPSCh. 4.5 - Prob. 14PPSCh. 4.5 - Prob. 15PPSCh. 4.5 - Prob. 16HPCh. 4.5 - Prob. 17HPCh. 4.5 - Prob. 18HPCh. 4.5 - Prob. 19HPCh. 4.5 - Prob. 21PFACh. 4.5 - Prob. 22PFACh. 4.5 - Prob. 23PFACh. 4.5 - Prob. 24PFACh. 4.5 - Prob. 25PFACh. 4.5 - Prob. 26PFACh. 4.5 - Prob. 27PFACh. 4.6 - Prob. 1AGPCh. 4.6 - Prob. 1BGPCh. 4.6 - Prob. 2GPCh. 4.6 - Prob. 3AGPCh. 4.6 - Prob. 3BGPCh. 4.6 - Prob. 4GPCh. 4.6 - Prob. 1CYUCh. 4.6 - Prob. 2CYUCh. 4.6 - Prob. 3CYUCh. 4.6 - Prob. 4PPSCh. 4.6 - Prob. 5PPSCh. 4.6 - Prob. 6PPSCh. 4.6 - Prob. 7PPSCh. 4.6 - Prob. 8PPSCh. 4.6 - Prob. 9PPSCh. 4.6 - Prob. 10PPSCh. 4.6 - Prob. 11PPSCh. 4.6 - Prob. 12PPSCh. 4.6 - Prob. 13PPSCh. 4.6 - Prob. 14PPSCh. 4.6 - Prob. 15HPCh. 4.6 - Prob. 16HPCh. 4.6 - Prob. 17HPCh. 4.6 - Prob. 18HPCh. 4.6 - Prob. 19PPSCh. 4.6 - Prob. 20PPSCh. 4.6 - Prob. 21PPSCh. 4.6 - Prob. 22PPSCh. 4.6 - Prob. 23PPSCh. 4.7 - Prob. 1AGPCh. 4.7 - Prob. 1BGPCh. 4.7 - Prob. 2AGPCh. 4.7 - Prob. 2BGPCh. 4.7 - Prob. 3AGPCh. 4.7 - Prob. 3BGPCh. 4.7 - Prob. 4AGPCh. 4.7 - Prob. 4BGPCh. 4.7 - Prob. 4CGPCh. 4.7 - Prob. 1CYUCh. 4.7 - Prob. 2CYUCh. 4.7 - Prob. 3CYUCh. 4.7 - Prob. 4CYUCh. 4.7 - Prob. 5CYUCh. 4.7 - Prob. 6CYUCh. 4.7 - Prob. 7CYUCh. 4.7 - Prob. 8PPSCh. 4.7 - Prob. 9PPSCh. 4.7 - Prob. 10PPSCh. 4.7 - Prob. 11PPSCh. 4.7 - Prob. 12PPSCh. 4.7 - Prob. 13PPSCh. 4.7 - Prob. 14PPSCh. 4.7 - Prob. 15PPSCh. 4.7 - Prob. 16PPSCh. 4.7 - Prob. 17PPSCh. 4.7 - Prob. 18PPSCh. 4.7 - Prob. 19PPSCh. 4.7 - Prob. 20PPSCh. 4.7 - Prob. 21PPSCh. 4.7 - Prob. 22PPSCh. 4.7 - Prob. 23PPSCh. 4.7 - Prob. 24PPSCh. 4.7 - Prob. 25PPSCh. 4.7 - Prob. 26PPSCh. 4.7 - Prob. 27PPSCh. 4.7 - Prob. 28PPSCh. 4.7 - Prob. 29PPSCh. 4.7 - Prob. 30PPSCh. 4.7 - Prob. 31PPSCh. 4.7 - Prob. 32PPSCh. 4.7 - Prob. 33PPSCh. 4.7 - Prob. 34PPSCh. 4.7 - Prob. 35PPSCh. 4.7 - Prob. 36PPSCh. 4.7 - Prob. 37PPSCh. 4.7 - Prob. 38HPCh. 4.7 - Prob. 39HPCh. 4.7 - Prob. 40HPCh. 4.7 - Prob. 41HPCh. 4.7 - Prob. 42HPCh. 4.7 - Prob. 43HPCh. 4.7 - Prob. 44PFACh. 4.7 - Prob. 45PFACh. 4.7 - Prob. 46PFACh. 4.7 - Prob. 47PFACh. 4.7 - Prob. 48PFACh. 4.7 - Prob. 49PFACh. 4.7 - Prob. 50PFACh. 4.7 - Prob. 51PFACh. 4.7 - Prob. 52PFACh. 4 - Prob. 1MCQCh. 4 - Prob. 2MCQCh. 4 - Prob. 3MCQCh. 4 - Prob. 4MCQCh. 4 - Prob. 5MCQCh. 4 - Prob. 6MCQCh. 4 - Prob. 7MCQCh. 4 - Prob. 8MCQCh. 4 - Prob. 9MCQCh. 4 - Prob. 10MCQCh. 4 - Prob. 11MCQCh. 4 - Prob. 12MCQCh. 4 - Prob. 13MCQCh. 4 - Prob. 14MCQCh. 4 - Prob. 15MCQCh. 4 - Prob. 16MCQCh. 4 - Prob. 17MCQCh. 4 - Prob. 18MCQCh. 4 - Prob. 19MCQCh. 4 - Prob. 20MCQCh. 4 - Prob. 21MCQCh. 4 - Prob. 22MCQCh. 4 - Prob. 23MCQCh. 4 - Prob. 1SGRCh. 4 - Prob. 2SGRCh. 4 - Prob. 3SGRCh. 4 - Prob. 4SGRCh. 4 - Prob. 5SGRCh. 4 - Prob. 6SGRCh. 4 - Prob. 7SGRCh. 4 - Prob. 8SGRCh. 4 - Prob. 9SGRCh. 4 - Prob. 10SGRCh. 4 - Prob. 11SGRCh. 4 - Prob. 12SGRCh. 4 - Prob. 13SGRCh. 4 - Prob. 14SGRCh. 4 - Prob. 15SGRCh. 4 - Prob. 16SGRCh. 4 - Prob. 17SGRCh. 4 - Prob. 18SGRCh. 4 - Prob. 19SGRCh. 4 - Prob. 20SGRCh. 4 - Prob. 21SGRCh. 4 - Prob. 22SGRCh. 4 - Prob. 23SGRCh. 4 - Prob. 24SGRCh. 4 - Prob. 25SGRCh. 4 - Prob. 26SGRCh. 4 - Prob. 27SGRCh. 4 - Prob. 28SGRCh. 4 - Prob. 29SGRCh. 4 - Prob. 30SGRCh. 4 - Prob. 31SGRCh. 4 - Prob. 32SGRCh. 4 - Prob. 33SGRCh. 4 - Prob. 34SGRCh. 4 - Prob. 35SGRCh. 4 - Prob. 36SGRCh. 4 - Prob. 37SGRCh. 4 - Prob. 38SGRCh. 4 - Prob. 39SGRCh. 4 - Prob. 40SGRCh. 4 - Prob. 41SGRCh. 4 - Prob. 42SGRCh. 4 - Prob. 43SGRCh. 4 - Prob. 44SGRCh. 4 - Prob. 45SGRCh. 4 - Prob. 46SGRCh. 4 - Prob. 47SGRCh. 4 - Prob. 48SGRCh. 4 - Prob. 49SGRCh. 4 - Prob. 50SGRCh. 4 - Prob. 51SGRCh. 4 - Prob. 52SGRCh. 4 - Prob. 53SGRCh. 4 - Prob. 54SGRCh. 4 - Prob. 55SGRCh. 4 - Prob. 56SGRCh. 4 - Prob. 57SGRCh. 4 - Prob. 58SGRCh. 4 - Prob. 59SGRCh. 4 - Prob. 60SGRCh. 4 - Prob. 61SGRCh. 4 - Prob. 62SGRCh. 4 - Prob. 63SGRCh. 4 - Prob. 64SGRCh. 4 - Prob. 65SGRCh. 4 - Prob. 66SGRCh. 4 - Prob. 67SGRCh. 4 - Prob. 1PTCh. 4 - Prob. 2PTCh. 4 - Prob. 3PTCh. 4 - Prob. 4PTCh. 4 - Prob. 5PTCh. 4 - Prob. 6PTCh. 4 - Prob. 7PTCh. 4 - Prob. 8PTCh. 4 - Prob. 9PTCh. 4 - Prob. 10PTCh. 4 - Prob. 11PTCh. 4 - Prob. 12PTCh. 4 - Prob. 13PTCh. 4 - Prob. 14PTCh. 4 - Prob. 15PTCh. 4 - Prob. 16PTCh. 4 - Prob. 17PTCh. 4 - Prob. 18PTCh. 4 - Prob. 19PTCh. 4 - Prob. 20PTCh. 4 - Prob. 1CRCh. 4 - Prob. 2CRCh. 4 - Prob. 3CRCh. 4 - Prob. 4CRCh. 4 - Prob. 5CRCh. 4 - Prob. 6CRCh. 4 - Prob. 7CRCh. 4 - Prob. 8CRCh. 4 - Prob. 9CRCh. 4 - Prob. 10CRCh. 4 - Prob. 11CRCh. 4 - Prob. 12CRCh. 4 - Prob. 13CRCh. 4 - Prob. 14CRCh. 4 - Prob. 15CR
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