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anonymous

  • one year ago

For the equation x^2+y^2-8x-2y-19=0 do the following. a. find the center (h,k) and the radius r of the circle. b. graph the circle. c. Find the intercepts, if any.

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  1. anonymous
    • one year ago
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    you have to complete the square twice do you know how to do that?

  2. anonymous
    • one year ago
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    Yes, I do! I just don't really know how to do that with this problem...

  3. anonymous
    • one year ago
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    \[x^2-8x+y^2-2y=19\]

  4. anonymous
    • one year ago
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    half of 8 is 4, half of 2 is 1 go right to \[(x-4)^2+(y-1)^2=19+4^2+1^2\] and work from there

  5. anonymous
    • one year ago
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    ok! Thank you! I have to write that down

  6. anonymous
    • one year ago
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    yes you should write it down yw

  7. anonymous
    • one year ago
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    I meant to write it down so i can work it out and transfer it on to my online class... :)

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spraguer (Moderator)
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