Regan is trying to find the equation of a quadratic that has a focus of (−2, 5) and a directrix of y = 13. Describe to Regan your preferred method for deriving the equation. Make sure you use Regan's situation as a model to help her understand.

Question

anonymous · Answer

@justicehunter @E.ali

amistre64 · Answer

you can find the vertex, it is halfway between the focus and directrix

amistre64 · Answer

also, the curve enwraps the focus .... so we can see that it has a downward pose
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