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Write the equation for a parabola with a focus at (0,-5) and a directrix at y=-3

Sagot :

Answer:

y=− x^2 /4-4

Step-by-step explanation:

Answer:

[tex]y=-\frac{x}{4} ^{2} -4[/tex]

Step-by-step explanation:

Trust me it's correct, it's from Khan academy