Linear (Arithmetic) Scaling

On a linear (arithmetic) scale chart, the spacing between each point on the vertical scale is identical. Thus the vertical distance between 10 and 20 is the same as the vertical distance between 90 and 100. While this kind of scaling is intuitive and easy to recreate by hand, linear scaling should not be used on charts with large vertical ranges. A move from 10 to 20 is much better than a move from 90 to 100, but on a linear scale they both appear the same.