Derivation of dis. formula for a point and a line | Straight lines | Grade 11 | Math | Khan Academy

In this video, we derive the formula for the distance between a line and a point. We do this by first finding the distance of a given line from a variable point. We then expand on the result by generalising it for a variable line. Finally, we apply the derived formula on the examples we've been using all along. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! (https://www.khanacademy.org/math/ncer...) Timestamps: 00:00 Refresher on the story so far 03:12 Finding distance from a variable point 05:37 Finding distance from a variable line 10:00 Applying the distance formula Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Ashish Gupta