Line of Best Fit/Scatter Plots

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

The number of siblings you have and your weight. 

• Positive correlation
• Negative correlation
• No correlation
• All of the above

Find the slope for the trend line using points (2,2) and (4,3)

• 2
• 1/2
• -2
• -1/2

Tags

CCSS.8.EE.B.5

Which scatter plot shows a linear relationship between x and y?

• Graph A
• Graph B
• Graph C
• Graph D

Tags

CCSS.8.F.A.3

What is the correlation?

• Negative correlation
• No correlation
• Positive correlation
• All of the above

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A
• B
• C
• D

Which choice best defines the term "linear function"?

• An equation that is the bomb diggity
• An equation that can be written in slope-intercept form
• An equation with an exponent in it
• An equation that has a slope but not a y-intercept

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

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

• The more you miss school the higher your grade will be.

• The more days that you are absent the lower your grade will be.

• There is no correlation between days absent and your grade.

Tags

CCSS.HSF-LE.A.1B

Looking at the graph showing a line of best fit, what is the correlation shown?

• Length of life is constant
• Length of life increases as amount of sunlight increases
• Length of life increases as amount of sunlight decreases
• Length of life decreases as amount of sunlight increases