What is the equation of the parabola whose focus is at the origin ?(0,0) and whose directrix passes  through the points ?(−4,0) and ?(0, −4)? What is the axis of symmetry of the same parabola? Show  the graph of the parabola (red) with its directrix (blue) and axis of symmetry(green).     Using geogebra.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section: Chapter Questions
Problem 13T
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What is the equation of the parabola whose focus is at the origin ?(0,0) and whose directrix passes 
through the points ?(−4,0) and ?(0, −4)? What is the axis of symmetry of the same parabola? Show 
the graph of the parabola (red) with its directrix (blue) and axis of symmetry(green).

 

 

Using geogebra.

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