Slope

Slope might mean:

An area of ground that tends evenly upward or downward
The degree to which a surface tends upward or downward
In mathematics, the ratio of the vertical and horizontal distances between two points on a line

Slope Media

Slope: m = \frac{\Delta y}{\Delta x} = \tan(\theta)
Slope illustrated for y = (3/2)x − 1. Click on to enlarge
Slope of a line in coordinates system, from f(x) = −12x + 2 to f(x) = 12x + 2
Slopes of parallel and perpendicular lines
At each point, the derivative is the slope of a line that is tangent to the curve at that point. Note: the derivative at point A is positive where green and dash–dot, negative where red and dashed, and zero where black and solid.
Slope warning sign in the Netherlands
Slope warning sign in Poland
A 1371-meter distance of a railroad with a 20‰ slope. Czech Republic
Steam-age railway gradient post indicating a slope in both directions at Meols railway station, United Kingdom