Scatterplots and Trend Lines Review

• gain 5 hour of sleep for 7 cups of coffee

• lose 5 hours of sleep for 7 cups of coffee

• lose 7 cups of coffee for 5 hours of sleep

• lose 5 cups of coffee for 7 hours of sleep

• gain 7 cups of coffee for every 5 hours of sleep

Tags

CCSS.HSF.LE.B.5

Which of the following could be the equation of the trend line for this graph?

• There is no trend line because there is no association

Tags

CCSS.8.EE.B.5

Which equation could be a trend line for this graph?

• There is no trend line because there is no association

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

What is the slope of this trend line?

• 70

• -3

Tags

CCSS.8.EE.B.5

Which scatterplot shows a negative relationship?

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• 
• 

Which shows a line of best fit?

• 
• 
• 
• 

Tags

CCSS.8.EE.B.5

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

According to the graph, how many students are in the class?

• 26

• 25

• 15

• 30

Tags

CCSS.HSF.IF.B.4

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