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chris215

  • one year ago

Describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x). f(x) = 4 cos x; g(x) = cos x

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  1. chris215
    • one year ago
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    vertical stretch by a factor of 4?

  2. chris215
    • one year ago
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    wait no horizontal?

  3. anonymous
    • one year ago
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    Yes, it would be. The range would be from [-1,1] to [-4,4] Therefore it stretched vertically from a factor of 4.

  4. chris215
    • one year ago
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    oh ok lol thanks

  5. anonymous
    • one year ago
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    It cant be horizontal because only the y coordinate are increasing. If it was cos(x-pi/2) from cos(x), then it would have a horizontal or compressional factor.

  6. anonymous
    • one year ago
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    No problem!

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