perpendicular lines
What perpendicular lines means in Mathematics GCSE, as defined for AQA, Pearson Edexcel.
Definitions of perpendicular lines
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Reference: Pearson Edexcel
Lines whose gradients multiply to −1, so each is the negative reciprocal of the other.
Two straight lines are perpendicular if the product of their gradients is −1.
Topics that use perpendicular lines
- Graphs (AQA GCSE)
- Algebra - Graphs (Pearson Edexcel GCSE)
Related terms
- Asymptote
- Asymptotes
- completing the square
- coordinate plane
- Displacement
- Distance travelled
- Gradient
- Parallel lines
Using perpendicular lines in the exam
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