anonymous
  • anonymous
need help !!
Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
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anonymous
  • anonymous
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
hartnn
  • hartnn
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 \(\pi+\theta\)
anonymous
  • anonymous
so is it y-axis only??

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hartnn
  • hartnn
yes, it indeed has a y-axis symmetry! :)
hartnn
  • hartnn
To check y-axis symmetry, replace r by r and \(\theta\) by \(\pi-\theta\) r = 2+3 sin (pi-theta) = 2+3 sin theta
anonymous
  • anonymous
thank you ! do you think you vould help me two more questions?
hartnn
  • hartnn
sure :)
anonymous
  • anonymous
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
anonymous
  • anonymous
https://lss.brainhoney.com/Resource/24831188,0/Assets/46149_50f97439/0808_g17_q3.gif
anonymous
  • anonymous
@hartnn

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