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If a parabola's focus is at (1, -1) and directrix is at y =7, what is the general form of the equation representing this parabola?

If a parabola's focus is at (1, -1) and directrix is at y =7, what is the general form of the equation representing this parabola? O x -47=0 O x - 2x + 2y + 16y - 47 = 0 O x3 - 2r + 16y - 47 = 0 O x - 2r + 16y - 49 = 0

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