Slope

Slope [slohp]
Noun
Slope in mathematics describes the steepness (degree) of a line. Also in mathematics, slopes only go from left to right, unlike slopes in real life. A slope can be negative, positive or zero.
Example:

 Positive Slope:

  

Negative Slope:

Zero Slope (practically, no slope at all) 

There are three main steps in finding the slope of a straight line:

1) Identify any of the line's two points 

2) Choose which one will be (x1,y1) and (x2,y2)

3) Use the equation located on the bottom do find the slope of the line