Scatter Plots & Lines of Best Fit Review

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 chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

If Joe worked 30 hours, how much is he expected to earn?

• $600
• $200
• $1000
• $800

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

• Yes

• No

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

• Yes

• No

What is the y-intercept?

• -2

• 3

• 2

• -3

The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 90°?

• 55
• 0
• 103
• 100

What is the equation of the line of best fit?

• y= 6x + 2

• y = -2x +6

What are the coordinates of the outlier?

• (1,9)

• (9,1)

• (2,2)

• y=x

What is the equation of the line of best fit?

• y= 2x+3

• y=3x+2

Which of the following lines represents the line of best fit for the scatter plot?

• A
• B
• C
• D