Parallel and perpendicular lines (AQA GCSE Further Maths): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
ShowHide
Practise the cards
12 cards from this deck
What does gradient measure?
What does gradient measure?
How steep a line is and which direction it's going
Gradient formula with points &
Gradient formula with points &
What does 'rise over run' mean?
What does 'rise over run' mean?
Vertical change divided by horizontal change
Definition of parallel lines
Definition of parallel lines
Lines that never meet, no matter how far extended
Gradient rule for parallel lines
Gradient rule for parallel lines
Definition of perpendicular lines
Definition of perpendicular lines
Lines that meet at exactly 90 degrees (right angle)
Gradient rule for perpendicular lines
Gradient rule for perpendicular lines
Alternative form of perpendicular gradient rule
Alternative form of perpendicular gradient rule
(negative reciprocal)
Scale requirement for perpendicular lines to look right
Scale requirement for perpendicular lines to look right
Same scale on both axes
If gradient is , perpendicular gradient is?
If gradient is , perpendicular gradient is?
If gradient is , perpendicular gradient?
If gradient is , perpendicular gradient?
How to verify lines are perpendicular?
How to verify lines are perpendicular?
Check gradients mathematically, not visually