Parabola Focus Proof
Parabola
Quadratic function, y = x2
svg: Quadratic function, y = x², parabola.
Parabola stencil with mathematic parabola functions
svg: Square and square-root function graph, if possible use this instead of the next two versions!
pdf: Square and square-root function graph, a4-paper-page (pdf).
jpg: Square and square-root function graph, highres JPEG.

used in edit