Linear Models for Predictions

• y= 8/7x+1
• y= 7/8x+1
• y= -7/8 +1
• y= -8/7+1

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

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

• 2

• 1/2

• -2

• -1/2

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

• Graph A

• Graph B

• Graph C

• Graph D

• 64

• 74

• 72

• 95

Using a linear model, which is the best prediction for the amount of sunny days if there were 10 rainy days?

• A

• B

• C

• D

• 28

• 28.5

• .5

• 56.5

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

• 6

• 50

• 55

• 59

Using a linear model, which is the best prediction for the amount of sunny days if there were 10 rainy days?

• A

• B

• C

• D

• 27.5 miles

• 27.507

• 3 miles