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haleyking345 Group Title

Sketch the graph of y=cos(x+pie/2). I don't understand how to do this.

  • one year ago
  • one year ago

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  1. ZeHanz Group Title
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    Do you know how to sketch the graph of y = cosx ?

    • one year ago
  2. haleyking345 Group Title
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    yes i do

    • one year ago
  3. ZeHanz Group Title
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    The graph of y = cos(x + pi/2) looks a lot like y = cos x. You could see this as follows: cos 0 = 1 is the starting point of the "normal" cos. To get 1 as a result from your function, you need to substitute -pi/2 for x. That means the starting point of cos(x + pi/2) has shifted...

    • one year ago
  4. haleyking345 Group Title
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    to the left right?

    • one year ago
  5. ZeHanz Group Title
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    Right, to the left!

    • one year ago
  6. haleyking345 Group Title
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    So, it would start at -pie/2 and would it go to pie/2 in the positive direction?

    • one year ago
  7. ZeHanz Group Title
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    The period (2pi) hasn't changed, so it would end at 3pi/2, exactly 2pi to the right from -pi/2

    • one year ago
  8. haleyking345 Group Title
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    oh, ok i get it now thanks!!!

    • one year ago
  9. ZeHanz Group Title
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    Thank you too!

    • one year ago
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