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OpenStudy (anonymous):
From the equation of a parabola identify the focus and directrix: y^2-8x+10y+9=0 A. Focus: (-5,0) and Directrix: x=4 B. Focus (-5,-2) and Directrix: x=-4 C. Focus (-5, -2) and Directrix x=4 D. Focus (0,-5) and Directrix x=-4
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