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GXWeb Enveloped Parabola

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GXWeb Curve Construction Collection (like this one!)

About the Parabola (from Wolfram MathWorld)

 

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A parabola is a curve where any point is at an equal distance from a fixed point (the focus), and a fixed straight line (the directrix)

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$a$					▶
		-5	1	5
$\theta$					▶
		-1.57	0.78	1.57

App generated by GXWeb

 

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The parabola constructed here is the locus of line AB where $a = Length(OD)$ and $angle(AOD) = \theta$.

 

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Cartesian equation: $$Y^2+4\cdot X\cdot a-4\cdot a^2$$

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Construct your own Model with GXWeb

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Behind the Scenes

 

Learn How: Create your own GXWeb Assessment Task

Learn How 2: Take GXWeb to the Next Level

View JavaScript GXWeb Code (gxparabola.js)

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©2020 Compass Learning Technologies ← Live Mathematics on the Web ← GXWeb Curve Construction Collection ← GXWeb Parabola

 

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