What is the equation of the directrix of the parabola x2 + 2x+4y– 27=0? A y=8 B y=0 (© y= -2 D y=6

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter10: Quadratic Equations
Section10.5: Graphing Quadratic Equations
Problem 10.93TI: Find the intercepts of the parabola y=3x2+4x+4 .
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Question 18
What is the equation of the directrix of the parabola x2 +2x+4y- 27=0?
A y=8
В
y=0
(c) y= - 2
D y=6
Transcribed Image Text:Question 18 What is the equation of the directrix of the parabola x2 +2x+4y- 27=0? A y=8 В y=0 (c) y= - 2 D y=6
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