Ch5 Straight line graphs Flashcards
1
Q
Gradient
A
(y2-y1) / (x2-x1)
2
Q
Parallel lines
A
have same gradient
3
Q
Line length
A
√(x2-x1)^2 + (y2-y1)^2
3
Q
Perpendicular lines
A
Gradient is negative reciprocal
-1/m
