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OpenStudy (anonymous):
Which conic section does this equation represent: x^2-4x-y^2+6y-9=0 ? A. Circle B. Ellipse C. Parabola D. Hyperbola
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OpenStudy (anonymous):
it is a hyperbola because of the \(-y^2\)
OpenStudy (precal):
not a circle because ax^2 and bx^2 have to be the same
OpenStudy (precal):
http://www.purplemath.com/modules/conics.htm here is a summary from purple math to help you
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