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Parabolas - Vertex, Focus, Directrix

curriculum/challenges/english/blocks/advanced-trig-conics/parabolas-vertex-focus-directrix-video.md

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--description--

In this video, you will learn about special forms for equations of parabolas, and how to find the vertex, focus, and directrix of a parabola.

--questions--

--text--

Which of the following is a valid form for the equation of a parabola?

--answers--

$x - h = 4p(y - k)^2$


$y^2 - k^2 = 4p(x - h)$


$(y - k)^2 = 4p(x - h)$


$y - k = 4p(x - h)^2$

--video-solution--

3