Scatterplots and Best Fit Lines

Scatterplots and Best Fit Lines

8th Grade

10 Qs

quiz-placeholder

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Scatterplots and Best Fit Lines

Scatterplots and Best Fit Lines

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

CCSS
8.F.A.3, 8.EE.B.5, HSF.BF.A.2

+3

Standards-aligned

Created by

Anthony Clark

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Make a prediction for a resting heart rate after 6 hours of exercise a week.

6

50

55

59

Tags

CCSS.HSF.BF.A.2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which scatterplot suggests a linear relationship between x and y?

Media Image
Media Image
Media Image
Media Image

Tags

CCSS.8.F.A.3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The scatterplot shows the temp, in degrees, outside a house every hour for 10 hours.

Estimate the temp after 13 hours based off the trendline.

57.5

50

10

13

61.5

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which of the following would be the most accurate equation for the scatter plot?

y = -2x - 7

y = -x + 7

y = 3x + 7

y = 25x + 7

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which shows a line of best fit?

Media Image
Media Image
Media Image
Media Image

Tags

CCSS.8.EE.B.5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If m = 8/5 and b = -8/5, what is the equation of the trend line in y= mx + b?

0 = 8/5 (1) - 8/5

y = -8/5 x + 8/5

y = 8/5 x - 8/5

y = mx + b

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If m = -3/4 and b = 9, what is the equation of the trend line in y= mx + b?

0 = -3/4 (9) +9

y = -3/4 x + 9

y = -3/4 x - 9

y = 3/4 + 9

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

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