steve816
  • steve816
Find the center (h, k) and radius r of each circle.
Mathematics
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SOLVED
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katieb
  • katieb
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steve816
  • steve816
\[2(x-3)^2+2y^2=8\]
jim_thompson5910
  • jim_thompson5910
try to get the equation into the form \[\Large (x-h)^2 + (y-k)^2 = r^2\]
steve816
  • steve816
I divided the entire equation by 2

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jim_thompson5910
  • jim_thompson5910
great start
steve816
  • steve816
I got \[(x-3)^2+y^2=4\]
jim_thompson5910
  • jim_thompson5910
then what?
steve816
  • steve816
Hmm, is this the standard form?
jim_thompson5910
  • jim_thompson5910
yeah more or less. Do you see what the center is? what the radius is?
jackthegreatest
  • jackthegreatest
oo could i give the answer?
jim_thompson5910
  • jim_thompson5910
let steve try it out
jackthegreatest
  • jackthegreatest
ok could i give a hint?
steve816
  • steve816
Oooh I think I figured it out, the center is (3, 0) and the radius is 2.
jim_thompson5910
  • jim_thompson5910
correct
steve816
  • steve816
Thank you, but now I need to find the x and y-intercepts. How do I do that?
jim_thompson5910
  • jim_thompson5910
@jackthegreatest yes you can give hints as that helps better than just giving the answer
jackthegreatest
  • jackthegreatest
: )
jackthegreatest
  • jackthegreatest
lol k
jim_thompson5910
  • jim_thompson5910
to find the y intercept(s), you plug in x = 0 and solve for y to find the x intercept(s), you plug in y = 0 and solve for x
steve816
  • steve816
Alright, thanks :)
jim_thompson5910
  • jim_thompson5910
no problem

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