Conic Sections: Parabolas, Part 3 (Focus and Directrix)

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Uploaded by on Nov 5, 2010

Conic Sections: Parabolas, Part 3 ( Focus and Directrix). Just another example of finding the focus and directrix for a parabola (a slightly more involved example).

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Education

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  • MAAAAN I absolutely love having a teacher I can rewind :D

  • nice

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  • In my book the directrix is -p but the way you're solving the problem makes more sense. Is there some special case that im missing???

  • nice

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