8.12 Scatter Plots

The equation of the line of best fit of a scatter plot is y = 6x − 9. What is the slope of the equation?

• -6

• -9

• 6

• 9

Tags

CCSS.8.EE.B.5

• Linear positive association
• Nonlinear positive association
• Linear negative association
• Nonlinear negative association

Which graph represents a positive nonlinear association between x and y?

• Graph A

• Graph B

Tags

CCSS.HSS.ID.B.5

Which graph represents a positive linear association between x and y?

• Graph A
• Graph B

Tags

CCSS.8.F.A.3

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 12 absences should get approximately what score on the final exam?

• 60

• 92

• 70

• 76

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many pages would be in a book with 19 chapters.

• 150 pages

• 170 pages

• 190 pages

• 210 pages

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Tags

CCSS.8.EE.B.5

What is the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y= 10

Tags

CCSS.8.EE.B.5

Which line is the best line of best fit?

• a

• b

• c

• i don't see any lines

Tags

CCSS.8.EE.B.5

What are the coordinates of the outlier?

• (1,9)

• (9,1)

• (2,2)

• y=x

Tags

CCSS.HSF-LE.A.1B