A parabola is the locus of points equidistant from a given point (focus) and a line (directrix). Using this definition, find an equation of a parabola with the focus F (−1, 0) and the directrix x = 3.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
Question

A parabola is the locus of points equidistant from a given point (focus) and a line (directrix). Using this definition, find an equation of a parabola with the focus F (−1, 0) and the directrix x = 3. 

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