The pressure P (in millimeters of mercury) against the walls of the blood vessels of a person is modeled by

Question

P = 100-20 cos (8πt / 3)

where t is the time (in seconds). Use a graphing utility to graph the model.

Top left = a

Top right = b

Bottom left = c

Bottom right = d

One cycle is equivalent to one heartbeat. What is the person's pulse rate in heartbeats per minute?

______ beats per minute

Answer 1

What is the value of P when t = 0?