SOLUTION: Which of the following would best represent a cosine function with an amplitude of 2, a period of pi over 3, and a midline at y = 1?
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Question 1042538: Which of the following would best represent a cosine function with an amplitude of 2, a period of pi over 3, and a midline at y = 1?
I need to show work Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! The amplitude is normally , so you
need a factor of
The midline is normally , so you need
to add to the function
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So far, it looks like
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You ar told that:
when then the cosine has gone
through an entire period, so it must be true:
So, the function must be:
Here's a plot of 2 periods in both directions from . It is plotted from to
( note that as it should )