Scatter Plots + Linear Model

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.

Tags

CCSS.8.SP.A.1

CCSS.8.SP.A.2

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 6 chapters. 

• 100 pages
• 170 pages
• 60 pages
• 20 pages

Tags

CCSS.8.F.B.4

CCSS.8.SP.A.1

CCSS.8.SP.A.2

CCSS.8.SP.A.3

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 140 pages. 

• 12 chapters
• 19 chapters
• 14 chapters
• 21 chapters

Tags

CCSS.8.F.B.4

CCSS.8.SP.A.1

CCSS.8.SP.A.2

CCSS.8.SP.A.3

What is the age of the tree that is 8 feet tall?

• 6 Years

• 7 Years

• 8 Years

• 9 Years

Tags

CCSS.8.EE.B.5

CCSS.8.F.B.4

CCSS.8.SP.A.1

CCSS.8.SP.A.2

CCSS.8.SP.A.3

How many trees are 3 years old?

• 1

• 2

• 0

• 3

Tags

CCSS.HSS.ID.A.1

CCSS.HSS.ID.B.6

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? 

• 65
• 92
• 70
• 76

Tags

CCSS.8.F.B.5

CCSS.8.SP.A.1

CCSS.8.SP.A.2

If the debate team plans to practice for 6 hours, how many debates should they win?

• 20
• 16
• 24
• 28

Tags

CCSS.8.EE.B.5

CCSS.8.F.B.4

CCSS.8.SP.A.1

CCSS.8.SP.A.2

CCSS.8.SP.A.3

Using the linear model,  $y=1500x+900$  predict how much the elevator will weigh if there were 6 people on it. 

• 9000

• 9900

• 9009

• 900

Using the linear model,  $y=10x+10$  predict the temperature in Hayward in July ( x = 7). 

• 70

• 10

• 80