Good way to choose a different scale for charts

1. How do you choose a good scale for a graph?
2. Can the scales on a graph be different?

How do you choose a good scale for a graph?

Choice of Scale

Scales should be chosen in such a way that data are easy to plot and easy to read. On coordinate paper, every 5^th and/or 10^th line is slightly heavier than other lines; such a major division-line should always represent a decimal multiple of 1, 2, or 5 (e.g., 0, l, 2, 0.05, 20, 500, etc.).

Can the scales on a graph be different?

YES, you can take different scales on the x and y axis of a graph. For example, you can take scale values on x axis in he form of multiples of 2 i.e., 2.