Pure Year 1 Unit 5 Flashcards
1
Q
formula for m
A
(y2 - y1) / (x2 - x1)
2
Q
formula for finding equation of a straight line
A
y - y1 = m(x - x1)
3
Q
What do parallel lines have that are the same?
A
gradient
4
Q
How are the gradients of two perpendicular lines found?
A
There gradients will multiply to make -1
5
Q
How to find length of straight line between two points?
A
Pythagoras’ formula