Write the equation of a parabola whose directrix is y=-10.75 and has a focus at (−7,−1.25)   please show work

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter7: Conic Sections
Section: Chapter Questions
Problem 14T
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Write the equation of a parabola whose directrix is y=-10.75 and has a focus at (−7,−1.25)

 

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