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Topic: Find Center and Radius of Circle For This Equation
Replies: 2   Last Post: Jan 22, 2013 12:34 AM

 Messages: [ Previous | Next ]
 Charles Hottel Posts: 10 Registered: 9/5/11
Re: Find Center and Radius of Circle For This Equation
Posted: Jan 22, 2013 12:34 AM

"Butch Malahide" <fred.galvin@gmail.com> wrote in message
On Jan 21, 4:53 pm, "Charles Hottel" <chot...@earthlink.net> wrote:
> The equation is: x^2 +16x +105/16 +4y^2 +3y = 0
>
> I do not see how to get rid of the coefficient on y^2 without introducing
> a
> coefficient on x^2.
>
> I was able to manipulate this toget : (x + 8)^2 + 4(y +3/8)^2 = 58
> but I don't see how that helps. I feel I must be missing something or
> perhaps the problem should have had a 4x^2 factor? Thanks in advanc efor
> any advice on how to solve this.

That's not a circle, it's an ellipse. You can tell because of the
unequal coefficients on x^2 and y^2.

I must be tired since I did not notice that. So the problem statement is
wrong. Thanks

Date Subject Author
1/21/13 Charles Hottel
1/21/13 Butch Malahide
1/22/13 Charles Hottel