Directed Distance
For TI-83, TI-83+/SE, TI-84+/SE
Designed and Programmed
by Adam Steinberger
email: astein.junk@gmail.com

A wonderful tool for determining the directed distance between two
parallel lines. Multiple approaches give the high school calculus
student a myriad of opportunities in applying this measurement.
Plus, we even tell you the general formula so you know what to write out!