02:22 duration 2 minutes 22 seconds
Pythagorean Theorem
A quick run through the use of a^2 + b^2 = c^2 to find an unknown side of a right tirangle if we know the other two sides.
03:52 duration 3 minutes 52 seconds
Finding slopes of lines parallel and…
Finding slopes of lines parallel and perpendicular to a line given in the form Ax + By = C
Shows how to convert Ax + By = C to y = mx + b then what and why the slopes for parallell and perpendicular lintes are what they are.