rise divided by the run x 100.
Calculate the slope of the given line. Any line parallel to it will have the same slope.
The average slope is the ratio of the change between two points
They show elevation and slope.
The slope is calculated as: y1-y2/x1-x2 given two sets of points
elevation. the closer the lines the steeper the slope.
I am not sure what you mean; I guess some symbols disappeared when posting the question. I assume you have two given points. The idea is to calculate the slope as: slope = (difference in y-coordinates) / (difference in x-coordinates)
If the contour lines are far apart, then that indicates the land has a gentle slope (low slope).
Contour lines that are close together on a topographic map indicate an area of steep slope. If they essentially overlap you have a cliff.
On a topographic map, contour lines that are closer together indicate a steeper slope.
If the topographic lines are closer together it means that it has a steeper slope grade, if they are farther apart, it means that they have a more relaxed slope grade. There is usually a scale on the map that can tell you in exact measurements of the slope.
contour lines
The slope is the pitch divided by the developed circumference of the helix which is pi x diameter. Pitch = pi x diamter x slope