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SCATTER PLOTS AND LINEAR MODELS

Authored by Francisco Artuz

Mathematics

8th Grade

CCSS covered

Used 13+ times

SCATTER PLOTS AND LINEAR MODELS
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15 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

What type of association does this scatter plot show?

positive linear association
negative linear association
no association
nonlinear association

Tags

CCSS.HSF-LE.A.1B

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Which sentence describes the relationship shown on this scatter plot?

The more time spent training, the longer it takes to run 100 m.  
As the time spent training increases, the time to run 100 m decreases. 
As the time spent training decreases, the time to run 100 m decreases. 

Tags

CCSS.HSF-LE.A.1B

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Describe the association of the scatter plot.

Linear; positive association
Linear; negative association
Non-linear

Tags

CCSS.8.F.A.3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Chang wants to know if he is improving his skill on the cello. He created a scatter plot and drew a line of best fit. If he uses the point (2, 8) and (4, 4) from his line, which equation would best represent the line of best fit?

y = -2x + 12

y = 2x + 4

y = -2x -12

y = -2x + 11. 5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The graph below shows the relationship between the distance in miles a delivery truck traveled and the number of hours each delivery took. Which of the two given points would be the best to use to calculate the line of best fit?

(500, 11) and (700, 11)

(300, 9) and (400, 7)

(400, 9) and (500, 11)

(300, 7) and (600, 10)

Tags

CCSS.8.EE.B.5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The scatter plot shows the average yearly consumption of bottled water by people in the United States starting in 1990. Using the line of best fit, predict the average consumption of bottled water in the year 1999?

20 gallons

18 gallons

21 gallons

19 gallons

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The equation y = -2x + 7 models the amount of gas remaining in a lawnmower after x hours of use since it was filled. What is the meaning of the slope?

For each hour of mowing, the mower is predicted to use 2 gallons.

the predicted amount of gas the lawnmower can hold is 2 gallons

For every two hours of mowing, the mower is predicted to use 7 gallons.

The predicted amount of gas remaining after 1 hour is 2 gallons.

Tags

CCSS.HSF.LE.B.5

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