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anonymous

  • one year ago

need help !!

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  1. anonymous
    • one year ago
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    Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. (5 points) r = 2 + 3 sin θ No symmetry y-axis only x-axis only Origin only

  2. hartnn
    • one year ago
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    To check x-axis symmetry, replace r by -r and \(\theta\) by \(\pi-\theta\) To check y-axis symmetry, replace r by -r and \(\theta\) by \(-\theta\) To check origin symmetry, replace \(\theta\) by \(\pi+\theta\)

  3. anonymous
    • one year ago
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    so is it y-axis only??

  4. hartnn
    • one year ago
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    yes, it indeed has a y-axis symmetry! :)

  5. hartnn
    • one year ago
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    To check y-axis symmetry, replace r by r and \(\theta\) by \(\pi-\theta\) r = 2+3 sin (pi-theta) = 2+3 sin theta

  6. anonymous
    • one year ago
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    thank you ! do you think you vould help me two more questions?

  7. hartnn
    • one year ago
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    sure :)

  8. anonymous
    • one year ago
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    The graph of a limacon curve is given. Without using your graphing calculator, determine which equation is correct for the graph. (5 points) [-5, 5] by [-5, 5] r = 2 + 2 sin θ r = 3 + 2 sin θ r = 1 + 3 sin θ r = 3 + sin θ

  9. anonymous
    • one year ago
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    https://lss.brainhoney.com/Resource/24831188,0/Assets/46149_50f97439/0808_g17_q3.gif

  10. anonymous
    • one year ago
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    @hartnn

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