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OpenStudy (anonymous):
what is the equation of the parabola, in vertex form, with vertex at (-2,-4) and directrix x=-6? a.(y+4)^2=16(x+2) b.(y+4)^2=-8(x+6) c.(x+4)^2=8(y+2) d.(x+2)^2=8(y+4)
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OpenStudy (anonymous):
i think it is either a,b, and or d? please i need help
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