anonymous
  • anonymous
x^2+y^2+4y+2=0
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
simplify the following?
anonymous
  • anonymous
Show that the equation represents a circle by rewriting it in standard form, and find the center and radius of the circle.
anonymous
  • anonymous
Any ideas?

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anonymous
  • anonymous
oh ok i can do that 1 sec
anonymous
  • anonymous
Thank you!
anonymous
  • anonymous
the equation for a circle is (x - h)^2 + (y - k)^2 = r^2
anonymous
  • anonymous
yes.
anonymous
  • anonymous
so we have to make the equation u gave me look like that so x^2+y^2+4y+2=0 x^2 + (y + 2)^2 - (2)^2 = -2 x^2 + (y + 2)^2 = 2 (x + 0)^2 + (y+2)^2 = 2
anonymous
  • anonymous
do you understand so far?
anonymous
  • anonymous
yes!
anonymous
  • anonymous
not to rush you but i have to go soon
anonymous
  • anonymous
ok great :)
anonymous
  • anonymous
(x + 0)^2 + (y+2)^2 = 2 \[(x + 0)^2 + (y+2)^2 = (\sqrt{2})^{2}\] therefore the coordinates of the center is (0,-2) and the radius is \[\sqrt{2}\]
anonymous
  • anonymous
thank you so much!!!
anonymous
  • anonymous
np! :)
anonymous
  • anonymous
you rock

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