Mathematics, 28.02.2021 23:30, blumkemax8

Which equation represents a parabola with the focus at (0, -1) and the directrix y
= 1?
(1) x2 = -8y
(3) x2 = Sy
(2) x2 = - 4y
(4) x2 = 4y

Answers: 3

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Which equation represents a parabola with the focus at (0, -1) and the directrix y
= 1?
...