Locus of Intersection of Perpendicular Tangents for a Parabola

Download Geometry Expressions File

Take two tangents of a parabola that are perpendicular to each other. The locus of all such points will be a line. This line is the directrix.

Expressions

Name Input
Angle Derive Input Maple Input MathML Input Mathematica Input Maxima Input Mupad Input TI-Nspire Input text Input Image
Intersection Derive Input Maple Input MathML Input Mathematica Input Maxima Input Mupad Input TI-Nspire Input text Input Image