Question
1) Choose the subgroups whose data you would analyze. 1 Which city do you live in?Denton. Flower Mound. Lewisville 2 Which Tex-Mex restaurant is your
1) Choose the subgroups whose data you would analyze.
1 Which city do you live in?Denton. Flower Mound. Lewisville
2 Which Tex-Mex restaurant is your favorite?El Fenix. Cristina's. Abuelo's. 3 About how much money do you spend each month at Tex-Mex restaurants?
LewisvilleEl Fenix
DentonEl Fenix
Flower MoundCristina's
Denton$125
LewisvilleAbuelo's
CarrolltonEl Fenix
DentonCristina's
Flower MoundAbuelo's
Flower MoundEl Fenix
LewisvilleCristina's
DentonOn the Border
DentonAbuelo's
$75El Fenix
2) Choose the subgroups whose data you would analyze.
1 Which city do you live in? Dallas. Houston.
2 Which NFL team is your favorite? Cowboys. Texans. Steelers
3 About how much money do you spend each year on NFL team gear?
HoustonPatriots
DallasSteelers
HoustonSteelers
DallasPackers
PittsburghCowboys
HoustonCowboys
DallasCowboys
DallasTexans
Houston"Texans
3) Choose the subgroups whose data you would analyze.
1 What grade are you in? 9th grade. 10th grade
2 What is your favorite snack? fresh fruit. pizza
3 About how much money do you spend each month on snacks??
11thGradefresh fruit
9thGradetacos
9thGrade$35
9thGradefresh fruit
10thGradefresh fruit
9thGradepizza
8thGradenachos
10thGradepizza
4) Choose the subgroups whose data you would analyze.
1 What grade are you in?9thGrade. 10thGrade. 11thGrade .12thGrade
2 What is your favorite snack? fresh fruit. pizza.
3 About how much money do you spend each month on snacks??
8thGradefresh fruit
9thGradepizza
11thGradepizza
10thGradefresh fruit
10thGradepizza
12thGradepizza
11thGradefresh fruit
11thGrade$45
9thGradefresh fruit
12thGradefresh fruit 9thGradecandy
10thGradetacos
5) Choose the subgroups whose data you would analyze.
1 Are you a boy or a girl? boy. girl
2 What is your favorite subject in school? reading. science. math. history. art. music
3 About how much time do you spend studying each week?
boyscience
girlSpanish
boyart
girlart
boyspelling
boymath
boySpanish
boymusic
boyreading
girlmusic
girlscience
girlreading
girlmath
boyhistory
girlhistory
girlcomputer programming
1) Enter the data from the table in your calculator.
date grass height (cm)
3 1.2
8 4.8
13 6.2
18 10.9
23 12.4
28 15.2
2) Enter the data from the table in your calculator.
Hours traveled distance from home (km)
0 864
1 847
2 731
3 708
4 601
5 582
Find the equation of the line of best fit:
Use the equation to predict how many hours will have elapsed when the person arrives home.
a. 19 hours
b.y=877.24x-62.03
c.y=62.03x-877.24
d. 14.14 hours
e.y=-877.24x+62.03
f. 12 hours
g. 15 hours
h.y=-62.03x+877.24
3) Enter the data from the table in your calculator
Elapsed time Total number of golf balls found
1 10
2 24
3 26
4 42
5 43
6 68
Find the equation of the line of best fit:
Use the equation to predict how many golf balls will have been found after the 10th day.
a.y=0.8x-10.37
b.102.9103 golf balls
c.y=-10.37x+0.8
d.y=-0.8x+10.37
e.135
f.160
g.89
h.y=10.37x-0.8
4) Enter the data from the table in your calculator.
Elapsed Time (hours) total number of bugs caught in the spider web
1 10
2 25
3 31
4 47
5 51
6 68
Find the equation of the line of best fit:
Use the equation to predict how many hours will have elapsed when there are 100 bugs in the spider web.
a. 10.58 hours
b. 8.56 hours
c.y=10.97x+0.27
d.y=-10.97x-0.27
e. 9.09 hours
f.y=0.27x+10.97
g. 16.01 hours
h.y=-0.27x-10.97
5) Enter the data from the table in your calculator
Elapsed Time (days) number of cans of soda left in the refrigerator
1 25
2 21
3 20
4 18
5 14
6 12
Find the equation of the line of best fit:
Use the equation to predict how many cans will be left after 10 days.
a. 1 can
b. 5 cans
c. 3 cans
d.y=27.13x-2.51
e.y=2.51x-27.13
f.y=-27.13x+2.51
g.y=-2.51x+27.13
h. 0 cans
1) Enter the values into your graphing calculator.Find the values ofa,b, andc Use the values and the equation of line of best fit to predict the revenue when the price was $15 per unit.
Price (per unit)$9$9.50$10$10.50$11$11.50$12
Total Revenue$468$479$487$493$496$497$495
a=
b=
c=
Revenue when price was $15 per unit.:
a.-158.10
b.102
c.-242.98
d.-7.7
e.$430.65
f.-5.05
g.$494.23
h.115
2) Enter the values into your graphing calculator.Find the values ofa,b,andc. Use the values and the equation of line of best fit to predict the cost to produce only 1,000 units
Number Produced (thousands) 5 6 7 8 9 10 11
Cost of Production(thousands)$25$20.50$24$35.50$55$82.50$118
a=
b=
c=
Cost to produce only 1,000 units:
a.4
b.-78.3
c.$123(thousands)
d.-48.5
e.$18(thousands)
f.23.5
g.-6
h.167.5
3) Enter the values into your graphing calculator.Find the values ofa,b,andc. Use the values and the equation of line of best fit to predict the height after 9 seconds.
Time (seconds)0 1 2 3 4 5 6
Height (feet)112 145 166 180 184 172 157
a=
b=
c=
Height after 9 seconds.:
a.48.81
b.198.23
c.111.95
d.32.21
e.37.75
f.41.84
g.-5.06
h.-7.55
4) Enter the values into your graphing calculator.Find the values ofa,b, andc. Use the values and the equation of line of best fit to predict the revenue when the price was $10 per unit.
Price (per unit)$20 $22 $24 $26 $28 $30 $32
Total Revenue (thousands) $125 $131 $133 $131 $125 $115 $101
a=
b=
c=
Revenue when price was $10 per unit.:
a.43
b.-1.3
c.-155
d.24
e.$47(thousands)
f.-0.5
g.$35(thousands)
h.-176
5) Enter the values into your graphing calculator.Find the values ofa,b,andc. Use the values and the equation of line of best fit to predict the cost of producing 15,000 units
Number Produced (thousands)5 6 7 8 9 10 11
Cost of Production(thousands)$17 $10.40 $6.60 $5.60 $7.40 $12 $19.40
a=
b=
c=
Cost of producing 15,000 units.:
a.$77(thousands)
b.$35(thousands)
c.-22
d.87
e.2.8
f.-15
g.92
h.1.4
1) Enter the data from the table in your calculator.
x0 1 2 3 4 5 6 7
y 10 12.65 13.2 12.55 11.6 11.25 12.4 15.95
Find the equation of the line of best fit:
Use the equation to predicty whenx=10
.
a.y=0.02x^3-0.18x^2+0.52x+5.72
b. 70
c.y=0.15x^3-1.5x^2+4x+10
d. 50
e. 150
2) Enter the data from the table in your calculator.
x 1 2 3 4 5 6 7 8
y 6.075 6.16 6.065 5.88 5.695 5.6 5.685 6.04
Find the equation of the line of best fit:
Use the equation to predicty whenx=9
.
a. 15.86
b. 10.4
c. 23.75
d.y=0.02x^3-0.18x^2+0.52x+5.72
e.y=0.15x^3-1.5x2+4x+10
3) Enter the data from the table in your calculator.
x 0 1 2 3 4 5 6 7
y 200 170 160 170 180 160 110 60
Find the equation of the line of best fit:
Use the equation to predicty whenx=8
.
a.y=-1.79x^3+15.19x^2-39.01x+197.58
b.-58.82
c.15.86
d.23.75
e.y=0.15x^3-1.5x^2+4x+10
4) Enter the data from the table in your calculator.
x 1 2 3 4 5 6 7 8 9
y -61.1 -5.8 14.3 10.6 -5.5 -22.6 -29.3 -14.2 34.1
Find the equation of the line of best fit:
Use the equation to predicty whenx=12
.
a. 315.86
b. 423.75
c. 492.2
d.y=0.15x^3-1.5x^2+4x+10
e.y=1.9x^3-29x^2+129x-163
5) Enter the data from the table in your calculator.
x 1 2 3 4 5 6 7 8 9
y 1 5 6 6 6 6 9 15 25
Find the equation of the line of best fit:
Use the equation to predicty whenx=12
.
a.y=0.19x^3-2.41x^2+9.69x-6.42
b. 85.86
c. 91.14
d. 93.75
e.y=0.15x^3-1.5x^2+4x+10
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