functions & scatterplots review

Which scatter plot could have a trend line whose equation is y = x + 15?

• 
• 
• 
• 

Which of the following is not shown on the scatter plot below?

• a cluster

• negative association

• positive association

• an outlier

Estimate the y-value when the x is 10?

• 11

• 15

• 13

• 8

Estimate the y-value when the x is 2?

• 6

• 4

• 2

• 5

Estimate the y-value when the x is 5?

• 12

• 4

• 9

• 8

Estimate the y-value when the x is 3?

• 15

• 22

• 19

• 25

Estimate the y-value when the x is 10?

• 5

• 10

• 0

• 2.5

Estimate the y-value when the x is 6?

• 15

• 21

• 25

• 27

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

• $600
• $200
• $1000
• $800

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