-x^2-4x+4y^2+8y-22=0

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- Nov 12th 2008, 07:59 PMscottydointIs this problem a general for of the equation of a circle?
-x^2-4x+4y^2+8y-22=0

- Nov 12th 2008, 08:27 PMSoroban
Hello, scottydoint!

Quote:

It is not a circle . . . and have different coefficient.

Since the coefficients of and have__opposite__signs, it is a**hyperbola**.

- Nov 12th 2008, 08:38 PMearboth