https://www.khanacademy.org/math/algebra-home/alg-rational-expr-eq-func/alg-direct-and-inverse-variation/v/direct-and-inverse-variation 2020-11-06T18:53:40Z Intro to direct & inverse variation Sal explains what it means for quantities to vary directly or inversely, and gives many examples of both types of variation. Sal Khan video https://cdn.kastatic.org/googleusercontent/z47mH-BxMUZ1Yrzgu3rebtng4EJg1z5mfzbk8HxVyAuvvxTMw6_CnzpkwbAsqAzPCwgTA2Y6QQ1Mc0bcMjehYOl70Q Intro to direct & inverse variation Sal explains what it means for quantities to vary directly or inversely, and gives many examples of both types of variation. https://cdn.kastatic.org/ka-youtube-converted/92U67CUy9Gc.mp4/92U67CUy9Gc.mp4 594 Direct and inverse proportion https://www.khanacademy.org/math/algebra-home/alg-rational-expr-eq-func/alg-direct-and-inverse-variation/v/direct-variation-1 2021-06-28T22:10:45Z Direct variation word problem: filling gas Worked example: Model a context about filling gas with a direct variation equation. Sal Khan video https://cdn.kastatic.org/googleusercontent/8FEkx38fQ7Hy3kVkXrwzH2eG9q06krmVD-3UBrmqAi4oAVv920U9H9SbmCzioTDHOdawxsuQ0oOBp2weZLpsjT1e Direct variation word problem: filling gas Worked example: Model a context about filling gas with a direct variation equation. https://cdn.kastatic.org/ka-youtube-converted/rSadG6EtJmY.mp4/rSadG6EtJmY.mp4 219 Direct and inverse proportion https://www.khanacademy.org/math/class-8-bridge-course-mh/x32413ee700b4a348:direct-and-inverse-variation/x32413ee700b4a348:direct-and-inverse-proportion/e/direct-proportions 2026-04-01T15:58:47.49881528Z Direct proportions Given two values for quantities and that they're directly proportional, find a quantity that corresponds to a third value. Nick Kokkinis exercise https://www.khanacademy.org/math/class-8-bridge-course-mh/x32413ee700b4a348:direct-and-inverse-variation/x32413ee700b4a348:direct-and-inverse-proportion/e/commercial-math-7-b 2026-02-20T04:30:45.963786187Z Inverse proportion Commercial math ashish exercise https://www.khanacademy.org/math/revision-mr-class-7-term-2/x34b615b2e8bb343d:week-1-revision-mr-class-7-term-2-math/x34b615b2e8bb343d:direct-and-inverse-proportion/e/commercial-math-7-a 2025-02-18T07:52:09.551150445Z Direct proportion - short word problems Commercial math ashish exercise https://www.khanacademy.org/math/revision-mr-class-7-term-2/x34b615b2e8bb343d:week-1-revision-mr-class-7-term-2-math/x34b615b2e8bb343d:direct-and-inverse-proportion/e/revision-ratio-and-proportion-mh-class-7 2026-01-28T03:50:33.306290623Z Revision direct proportion and inverse proportion MH class 7 . Khan Academy exercise