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Math Help - Graph of cosine function

  1. #1
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    Graph of cosine function

    sketch the graph of each of the trigonometric functions for 0 <\theta<2\pi

    y=1-2sin\theta
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  2. #2
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    Quote Originally Posted by mastermin346 View Post
    sketch the graph of each of the trigonometric functions for 0 <\theta<2\pi

    y=1-2sin\theta
    When θ = 0, y = 1.
    When θ = 30, y = 0.
    When θ = 90 y = -1.
    When θ = 150, y = 0.
    when θ = 180, y = 1.
    When θ = 270 y = 3.
    When θ = 330, y = 2
    When θ = 360, y = 1.
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  3. #3
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    Quote Originally Posted by mastermin346 View Post
    sketch the graph of each of the trigonometric functions for 0 <\theta<2\pi

    y=1-2sin\theta
    hi

    sin Θ - amplitude 1 and -1

    2sin Θ - amplitude 2 and -2

    -2sin Θ - reflect the graph about the x-axis

    1-2sin Θ - shift the graph up by 1 unit , the amplitude is now 3 and -1 .

    Also , remember the domain .
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