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babydoll332

  • 2 years ago

Describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x). f(x) = cos x/2 ; g(x) = cos x

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  1. babydoll332
    • 2 years ago
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    Horizontal stretch by a factor of 2

  2. dumbcow
    • 2 years ago
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    the input into the "cos" function changed from x to x/2 this means the period has changed...a period is the time it takes for 1 cycle period = 2pi/B , where B is coefficient of x

  3. dumbcow
    • 2 years ago
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    haha yeah that is correct longer period means its stretched out

  4. babydoll332
    • 2 years ago
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    not by 1/2 tho right

  5. dumbcow
    • 2 years ago
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    right, "1/2" would mean the period got shorter

  6. dumbcow
    • 2 years ago
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    if it was cos(2x) .... that would be Horizontal stretch by factor of 1/2

  7. babydoll332
    • 2 years ago
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    thank you !!!!

  8. dumbcow
    • 2 years ago
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    yw :)

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