Khan Academy: More Analytic Geometry: Perpendicular Line Slope

Get right up and split it in half. Using a diagram, the video provides the definition of a perpendicular bisector. The portion in a playlist on basic geometry explains perpendicular bisector of a segment and of triangle sides properties.

This video demonstrates how to find the equation of a line when given a point on the line and the equation of a line perpendicular to it.

This problem has many steps involved. Finding equations and rearranging equations. Finding slope and getting the opposite reciprocal of a slope. Finding intercepts. There's a lot to do to solve this problem. It's not so difficult, it...

Sal dives in even deeper with a few more examples of exponential decay. Practice calculating k from half-life, and calculating initial mass. [7:21]

Provides a review of perpendicular bisectors, angle bisectors, medians, and altitudes and the special points of concurrency formed by these parts of a triangle. The points of concurrency are the circumcenter, incenter, centroid,and...

This video demonstrates how to take two given points of a line and write an equation for that line.

The video tutorial investigates parallel lines.

The video tutorial investigates parallel lines.

This video demonstrates how to determine if lines are parallel given the equations.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to construct perpendicular bisectors and use the Perpendicular Bisector Theorem.