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OpenStudy (anonymous):
classify the graph of the equation 4x^2+4y^2-4x+8y-11=0 as circle, a parabola, an ellipse, or a hyperbola
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ganeshie8 (ganeshie8):
Notice that x^2 and y^2 coefficients have same signs
OpenStudy (anonymous):
so what is it
OpenStudy (apolloschariot):
If you have x^2 and y^2 in the same equation, it's going to be a circle
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