Determine the equation of the directrix of the following conic section: y? = -18a O y = -9/2 O x = 9/2 O y= 9/2 O x = -9/2

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section: Chapter Questions
Problem 28RE
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Question 20
Determine the equation of the directrix of the following conic section:
y? =
= -18x
O y = -9/2
O x = 9/2
O y= 9/2
O x = -9/2
Transcribed Image Text:Question 20 Determine the equation of the directrix of the following conic section: y? = = -18x O y = -9/2 O x = 9/2 O y= 9/2 O x = -9/2
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