According to the American Geriatric Society, the maximum recommended heart rate for a 20-year-old man under stress is 200 beast per minute. The maximum recommended heart rate for a 60-year-old man under stress is 160 beats per minute.
(a) Find the linear function that relates that maximum recommended heart rate for men to age.
(b) Find a linear function that relates the maximum recommended heart rate for a 45-year-old man under stress.
(c) Interpret the slope.
(d) For what age would the maximum recommended heart rate under stress be 168 beats per minute?
a) H(x) = 220 - x b) H(45) = 220 - 45 = 175 c) the slope is the amount the max heart rate goes down per year d) 168 = 220 - x x = 220 - 168 = 52 years old
