# Distance formula

## By Khan Academy

How to find the distance between lines using the Pythagorean Formula  # Deriving the Equation of a Parabola in General

## By Khan Academy

Watch this video to get a better sense for how a parabola is defined geometrically, and how we can use the distance formula to help us find the equation of the parabola based on that definition. Remember, we need two distances to be the same for any point on the parabola. The distance from the point on the parabola to the focus must be the SAME as the distance from the point on the parabola to the directrix.  # Distance formula | Analytic geometry | Geometry | Khan Academy

## By Khan Academy

In this video, Sal Khan, explains how to how to find the distance between lines using the Pythagorean Formula. Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education.  # Distance formula | Analytic geometry | Geometry | Khan Academy

## By Khan Academy

In this video, Sal Khan, explains how to how to find the distance between lines using the Pythagorean Formula. Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education.  # Distance formula | Analytic geometry | Geometry | Khan Academy

## By Khan Academy

In this video, Sal Khan, explains how to how to find the distance between lines using the Pythagorean Formula. Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education.  # Motion Word Problems | MathHelp.com

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