GCSE Maths - Perpendicular Lines #75

This video explains what perpendicular means, how to check whether 2 lines are perpendicular to each other and how to find the gradient of a perpendicular line.

This video is suitable for maths courses around the world.
KS3 - All on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course
A-level - All on your course (but very basic)

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[Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
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- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.

Amadeus & Tom

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[tonyzambonistarkoni]

This method is way easier, I had no idea you could multiply them to get -1. but they're also the negative reciprocals of each other so you don't even need to multiply them, you can see from the example at 2:44 that 3/2 and -2/3 are negative (one is positive, one negative) reciprocals (equation is flipped, so 1/2 reciprocated is 2/1). It's also way easier and faster for questions like the graph example

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[littlemissdesolate]

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Request, sorry to bother, could you do equations on a tangent and circle?

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[EO_]

hi i was wondering how you would find c for the last question?

[hprivate]

what exam board are you science videos based on :)

[albatrossmaryam]

How can i graph if i found the perpendicular equation

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[CarthrineMokone]

Thank u so much u helped me and now I can do perpendicular lines without struggling u the best🥹😁