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anonymous

  • one year ago

MEDAL!!!!!!! Use the graph below to answer the question that follows:

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    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)

  3. welshfella
    • one year ago
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    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)

  4. welshfella
    • one year ago
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    what is the sign of the reflection in x axis?

  5. anonymous
    • one year ago
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    POSTIVE

  6. welshfella
    • one year ago
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    no - the reflection of 2 sin (x - pi/2) in x axis

  7. welshfella
    • one year ago
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    sign changes....

  8. anonymous
    • one year ago
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    so the answer is the second choice

  9. welshfella
    • one year ago
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    yes negative 2

  10. welshfella
    • one year ago
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    second choice

  11. anonymous
    • one year ago
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    can i ask another question

  12. welshfella
    • one year ago
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    sorry i have to go right now

  13. anonymous
    • one year ago
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    ok

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spraguer (Moderator)
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