Distance & Midpoint Formulas
The Distance Formula
Normally I pride myself on not deriving anything, since 99% of the time that infuriates students. However, in the case of the distance formula, I've found over my years of tutoring that showing how it came from the Pythagorean Formula is actually really helpful for students trying to memorize and use the formula. So I do that here. But if you hate it, you can always skip the first half of the video! Don't miss the word problem though.
Midpoint Formula
Back to no proofs on this one! We'll just learn this simple formula, and use it on a couple of basic problems before embarking on an awesome word problem example where we'll find the midpoint between L.A. and New York, and even find the name of the Kansas town nearest to it!