Parabola : Directrix, Focus, locus and equation : ExamSolutions

You are introduced to the directrix, focus, locus and equation of a parabola. To see the full index of tutorials go to ExamSolutions at www.examsolutions.co.uk
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8.C.3 Focus, directrix, latus rectum

Sorry about the error on calculating the x-coordinate of the vertex! Hopefully the rest is still helpful.
Conic Sections, Parabola : Find Equation of Parabola Given Directrix

Conic Sections, Parabola : Find Equation of Parabola Given Directrix. In this example, we are given that a parabola has a vertex at the origin and we are given the equation of the directrix. From that, we find the equation of the parabola.
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Conic Sections, Parabola: Sketch Graph by Finding Focus, Directrix, Points

Conic Sections, Parabola: Sketch Graph by Finding Focus, Directrix, Points. In this video, I sketch the graph of a parabola by first finding the directrix and focus followed by plotting a few points.
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(2) FP1 - The Parabola (Finding focus, directrix & basic equations) - y^2 = 4ax (further pure maths)

Taken from the FP1 Edexcel AS mathematics unit. Please note: Implicit differentiation can be used for the problems but is rarely covered before this module. I have therefore not used it in the workings to allow all students to access the questions.
b FP1 The Parabola Finding focus and directrix basic equations y^2 = 4ax further pure maths
10.2 - How to find the directrix, focus and vertex of a parabola

www.freemathvideos.com This math problem was filmed during onlinelive instruction for class. This is my way of providing a free tutorial for students that want to learn math from an online tutor. Please visit my website listed above where you can view all of my math lessons. Every video is a short clip that shows exactly how to solve math problems step by step. The problems are done in real time and in front of a live classroom. These videos are intended to help you learn how to solve math problems, review how to solve math problems, study for a test, finish your homework and get a better grade in your math class. Please write to me and let me know how I can better help you!
10 2 How to find the directrix focus and vertex of a parabola
Equation of parabola from focus and directrix

We have a focus of (7,11) and a directrix of y = -1. We need to use what we know about parabolas to find the equation. I want to apologize for the shaky camera work, as well as the sometimes (well mostly) blurry view. Hopefully my talking walks you through the process well enough.
Parabola (Analytical Geometry): find equation of parabola with focus (4,0) and directrix x=0

A www.door2math.com production.Analytical Geometry problem? Help!? find equation of parabola with focus (4,0) and directrix x=0 Answer y^2 = 8x - 16
Analytical Geometry analytical geometry problem find equation of parabola parabola with focus directrix y^2 = 8x - 16
Flagstaff Arts & Leadership Academy "Directrix"

Dance choreographed by Leslie Ptak Baker and FALA dancers to "Hallelujah" by the Vitamin String Quartet. Performed at the AZ High School Dance Festival in 2011.
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Equation of a Parabola Given Vertex and directrix

Write the equation of a parabola given a vertex and the directrix. More videos available on www.facebook.com
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