Other
Ubc Calculus Online Homepage: Orthogonal Trajectories
Interactive site where the student can change the position of the orthogonal trajectory and see the result.
Math Medics
S.o.s. Math: Orthogonal Trajectories
This lesson provides a general overview of orthogonal trajectories. The lesson is fairly indepth for high school students, yet a diligent student may come to a clear understanding of the subject by following the links provided.