normal lines

  1. MarkFL

    Lesson Another Cool Analytic Geometry Problem

    Consider the following diagram: In blue, is a parabola of the form: y=ax^2 where \(0<x\). Let us define a normal line as a line that is orthogonal to the parabola in the first quadrant. Five normal lines are shown in the figures above. The significance of the solid line in black will be...