Zusammenfassung der Ressource
Straight Line
- Gradient
- Tan theta
- y2 - y1
-----------
x2 - x1
- Parallel lines
same gradient
- Perpendicular
- Flip fraction
and change
sign
- dy
------
dx
- y=mx+c
y-b=m(x-a)
- Distance Formula
Distance between
two points
- Square root of
(y2-y1) squared +
(x2-x1) squared
- Lines
- Horizontal
- 0
- Vertical
- Undefined
- Uphill
- >0
- Downhill
- <0