anonymous
  • anonymous
Assume the graph of a function of the form y=ycos(k(x-b)) is given below. Which of the following are possible values for a,k, and b?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
anonymous
  • anonymous
a- a=4, k=1/2, b=-pi/4 b- a=2,k=4,b=pi/4 c- a=4,k=2,b=pi/4 d- a=4,k=2,and b=-pi/4
anonymous
  • anonymous
in your question, i'm assuming that second y is supposed to be an "a"....

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anonymous
  • anonymous
I thought the same thing, but there is no a in the equation, which is part of why I can't figure it out.
anonymous
  • anonymous
according to the choices, i'm pretty sure it is an "a" ...
anonymous
  • anonymous
you can eliminate B
anonymous
  • anonymous
anonymous
  • anonymous
since the peiod is pi, k=2 because period=2pi/k
anonymous
  • anonymous
so your choices are either C or D....
anonymous
  • anonymous
So it depends on if b is negative or positive. I think its C?
anonymous
  • anonymous
you're right...:)

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