Answer
$x^2=-100y$
Work Step by Step
Focus: $(0,-25)$; Directrix: $y=25$
$x^2=4py$ (parabola equation)
$F(0,p)$ (focus formula)
$y=-p$ (directrix formula)
$F(0,-25)$
$4(-25)=-100$
$x^2=-100y$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 7 - Conic Sections - Exercise Set 7.3 - Page 699: 23
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
