Parallel and Perpendicular Lines (AQA GCSE Maths): Flashcards
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Property parallel lines always share
Property parallel lines always share
Same gradient
Angle at which perpendicular lines meet
Angle at which perpendicular lines meet
90° (right angle)
Product when multiplying perpendicular gradients
Product when multiplying perpendicular gradients
-1
If gradient is , perpendicular gradient is
If gradient is , perpendicular gradient is
Term for perpendicular gradients
Term for perpendicular gradients
Negative reciprocals
In , parallel lines share this value
In , parallel lines share this value
(gradient)
In , parallel lines differ in this
In , parallel lines differ in this
(y-intercept)
To find , substitute this
To find , substitute this
Given point coordinates
Definition: parallel lines
Definition: parallel lines
Lines that never meet
First step in parallel/perpendicular problems
First step in parallel/perpendicular problems
Use gradient relationship