euclidean geometry - Is the reflective property of a parabola unique? - Mathematics Stack Exchange
Parabola - Wikipedia
Shift and scale parabolas | Khan Academy Wiki | Fandom
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What is the equation of the parabola with focus (2,1) and directrix 2x +y+1=0? - Quora
Parabola | Parabola, Wikipedia, Algebra
Parabola - Wikipedia
File:Parabola.png - Wikipedia
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Parabola | Brilliant Math & Science Wiki
Parabola - Wikipedia
Parabola - Wikipedia
![base:generating_approximate_sines_in_assembly [Codebase 64 wiki]](https://codebase64.org/lib/exe/fetch.php?media=base:sine-parabolas2.png "base:generating_approximate_sines_in_assembly [Codebase 64 wiki]")
base:generating_approximate_sines_in_assembly [Codebase 64 wiki]
Universal parabolic constant - Wikipedia
Parabola - Wikipedia
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Conic Sections | Brilliant Math & Science Wiki
File:Parabola features.svg - Wikimedia Commons
File:Partes de una parábola.svg - Wikimedia Commons
Parabola - Wikipedia
File:Parabola-pin-string.svg - Wikimedia Commons
How to Find the Focus of a Parabola: Equations and 5 Examples
