GCSE Maths - Perpendicular Lines

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*** WHAT'S COVERED ***
1. Definition of Perpendicular Lines
2. Identifying Perpendicular Lines Using Gradients
* The rule: Two lines are perpendicular if the product of their gradients equals -1.
* Worked examples applying the gradient product rule.
* Handling equations not initially in the y = mx + c format.
3. Finding the Gradient of a Perpendicular Line
4. Introduction to Finding the Equation of a Perpendicular Line

*** EXAM BOARD INFO ***
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)

*** CHAPTERS ***
0:00 Intro to Perpendicular Lines
0:42 The Gradient Product Rule for Perpendicular Lines
1:46 Example: Checking if Lines are Perpendicular
3:22 How to Find the Gradient of a Perpendicular Line
4:25 Finding the Equation of a Perpendicular Line (Overview)

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