What Is the Directrix - Search Videos

Parabola (String and Optical Properties)

Parabola (String and Optical Properties)

This video opens with a typical way of constructing a parabola given a focus and directrix: simply line up the directrix with the focus, and make a fold. Move to a different point on the directrix, and repeat the process until you have many tangent lines to your parabola. The string property of a parabola is written on the blue paper: It's ...

YouTubeMs. Edge32.3K viewsJun 22, 2016

Parabola Applications

Parabola | Definition, Formula & Examples

Parabola | Definition, Formula & Examples

34K viewsApr 30, 2014

Graphing a Parabola of the Form X^2 = AY | Geometry | Study.com

Graphing a Parabola of the Form X^2 = AY | Geometry | Study.com

Parabola Questions and Problems with Detailed Solutions

Parabola Questions and Problems with Detailed Solutions

analyzemath.com

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Parabola Equation

Equation of a Parabola | Focus & Directrix Formula

Equation of a Parabola | Focus & Directrix Formula

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Standard Form of the Equation of a Parabola with Vertex at the Origin - Example 3 ( Video ) | Calculus

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