scale (in graphs)

scale (in graphs)
The label on each axis of a diagram describing how distances in the diagram represent prices, quantities or other variables. The scale used should always be indicated. Any number of scales are possible; those most frequently used in economics are a proportional scale, where equal distances represent equal amounts of a variable x; an inversely proportional scale, where equal distances represent equal changes in 1/x; and a logarithmic scale, where equal distances represent equal proportional changes.