-x^2-4x+4y^2+8y-22=0
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Hello, scottydoint! It is not a circle . . . and have different coefficient. Since the coefficients of and have opposite signs, it is a hyperbola.
Originally Posted by scottydoint -x^2-4x+4y^2+8y-22=0 1. Complete the squares: 2. Re-write: 3. This is the equation of a hyperbola opening up-down.
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