anonymous
  • anonymous
MEDAL!!!!!!! Use the graph below to answer the question that follows:
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
answer choices f(x) = -2 cos (x- pi/2) f(x) = -2 sin (x-pi/2) f(x) = 2 cos(x-pi/2) f(x) = 2 sin( x-pi/2)
welshfella
  • welshfella
Hint: when x = 0 2*sin of (x - pi/2) will be 2 sin -pi/2 which will give -2 but this graph starts form y=2 so its the reflection of 2 sin(x - pi/2)

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welshfella
  • welshfella
what is the sign of the reflection in x axis?
anonymous
  • anonymous
POSTIVE
welshfella
  • welshfella
no - the reflection of 2 sin (x - pi/2) in x axis
welshfella
  • welshfella
sign changes....
anonymous
  • anonymous
so the answer is the second choice
welshfella
  • welshfella
yes negative 2
welshfella
  • welshfella
second choice
anonymous
  • anonymous
can i ask another question
welshfella
  • welshfella
sorry i have to go right now
anonymous
  • anonymous
ok

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