Experiments suggest that the male maximum heart rate (the most times a males heart can
Chapter 1, Problem 37(choose chapter or problem)
Experiments suggest that the male maximum heart rate (the most times a males heart can safely beat in a minute) decreases by 9 beats per minute during the first 21 years of his life, and by 26 beats per minute during the first 33 years.45 If you model the maximum heart rate as a function of age, should you use a function that is increasing or decreasing? Concave up or concave down? 3
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