8.5D Trend Lines Assignment

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

Based on the graph, if Joe earned $400, how many hours did he work?

• 25 hours
• 35 hours
• 45 hours
• 15 hours

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 6 absences should get approximately what score on the final exam? 
Hint: create the trend line first

• 65
• 92
• 70
• 76

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

• $600
• $200
• $1000
• $800

Which line appears to fit the data better?

• line A

• line B

Which shows a line of best fit?

• 
• 
• 
• 

Tags

CCSS.8.EE.B.5

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

What is a scatter plot?

• A graph that shows the relationship of two data sets.
• A graph drawn using rectangular bars to show how large each value is.
• A graph that shows information that is connected in some way.
• A graph that shows data changing over time.

What is a line of best fit used for?

• To make predictions
• To make the graph look pretty
• To connect the points
• To make it look like you know what you are doing

Tags

CCSS.8.EE.B.5

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

• 6
• 50
• 55
• 80