The final best practice for choosing the scale of a line graph is to test and refine your choice, and see how it affects the appearance and meaning of your graph. You can use software tools or ...

Learn six tips and techniques for using data visualizations to show scale and proportion in storytelling, and how they can help you communicate insights, persuade audiences, and engage emotions.

Some line graphs use a false origin. ... on your square paper or graph paper. Choose an appropriate scale for this axis and label your axis up to the largest frequency.

Graphs that are not drawn to scale mislead the reader. This post shows another example of a graph where the visual representation of the numbers is not proportional to the numbers themselves.