Trend Lines

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

About how many male math teachers will there be in 2016?

• 35

• 46

• 52

• 70

Based on this scatter plot, a student with 6 absences should get approximately what score on the final exam? 

• ≅ 58

• ≅ 92

• ≅ 100

• ≅ 76

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

• A

• B

• C

• D

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• D

identify the outlier

• 30, 100

• 100, 30

• there is no outlier

Choose the graph with a trend line that best fits the data.

• graph 1

• graph 2

• graph 3

• graph 4

the slope is -5/7, what does that mean?

• 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

Which of the following are ways to find the rate of change?

• change in y over change in x

• rise over run

• subtract y coordinates over subtract x coordinates

• all these methods will work

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 

• As the temperature increases, the number of visitors increases. 

• As the visitors increase, the temperature decreases. 

• No correlation