A personal trainer wants to look at the relationship between number of hours of exercise per week and resting heart rate of her clients. The data show a linear pattern with the summary statistics shown below:

mean

standard deviation

2= hours of exercise per week

= 8.9

s = 4.8

y = resting heart rate (beats per minute)

y = 74.3

8 = 7.2

r=-0.88

Find the equation of the least-squares regression line for predicting resting heart rate from the hours of

exercise per week.

Round your entries to the nearest hundredth.

y =