Which equation represents a parabola that has a focus of (0 0) and a directrix of y = 2
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Mathematics, 11.11.2019 15:31 Falconpride4079
Which equation represents a parabola that has a focus of (0 0) and a directrix of y = 2
1. x^2 = - (y-1)
2. x^2 = -4y
3. x^2 = -y
4. x^2 = -4 (y-1)
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