A medical study on the systolic blood pressure readings (top number) on men over40

years oldresults in the data below. Thex

-value is the number of years past40

years old and they

-value is the systolic blood pressure reading.

x y

8 63

11 77

14 86

17 90

20 140

Find the least squares regression line modeling this data. What is the slope of the regression line? Round your answer to three decimal places.