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write an equation of a parabola with a vertex at the origin and a directrix at y=5

0 votes
asked May 16, 2016 in ALGEBRA 1 by anonymous
reshown May 16, 2016 by goushi

1 Answer

0 votes

The directrix equation is image and vertex image.

Standard equation parabola is image,

where image is vertex and imagedirected distance from vertex to focus.

image

Directrix equation is image.

Substitute the image and image values.

image

Substitute image and image values in image.

image

Parabola equation is image.

answered May 16, 2016 by Anney Mentor

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