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OpenStudy (samsan9):
what is the equation of the parabola in vertex form with focus at (2 -4) and directrix y=-6? A.) (x+2)^2=1/4(y+4) B.) (x-2)^2=4(y+5) C.) (y+4)^2=-4(x-2) D.) (x-2)^2=-1/4(y+5)
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