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.

xy8

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.