While exercising, a person's recommended target heart rate is a function of age. The recommended number of beats per minute, y, is given by the function y=f (x) = -0.85x+187 where x represents a person's age in years. Determine the number of recommended heart beats per minute for your age. Show each step in the process of this calculation.

x=21

170 heart beat per minute.

Step-by-step explanation:

While exercising, a person's recommended target heart rate is a function of age. The recommended number of beats per minute, y, is given by the function y = f (x) = - 0.85x + 187 where x represents a person's age in years.

So, if my age is 21 years i. e. x = 21, then the number of recommended heart beats per minute for my age will be

y = f (21) = - 0.85 (21) + 187 = - 17.85 + 187 = 169.15 ≈ 170. (Answer)

{Taking the larger integer value}