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Session 8, Part A:
Cyclic Functions

In This Part: Tides | Heartbeats

When your heart beats, it pumps blood throughout your system of arteries. When doctors measure blood pressure, they usually measure the pressure of the blood in the artery of the upper arm.

But your blood pressure isn't constant. The graph below shows how blood pressure changes over time.

blood pressure graph

Problem A6

Solution  

What can you tell about blood pressure just before a heartbeat? Note 3

 

Problem A7

Solution  

What happens to blood pressure after a heartbeat?

 

Problem A8

Solution  

Is this the graph of a cyclic function?

 

Problem A9

Solution  

What are the period and amplitude for this graph?

 

Heartbeat problem taken from Ups and Downs. Mathematics in Context (Chicago: Encyclopedia Britannica, Inc., 1998), p. 26.

Next > Part B: Inverse Proportions

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