When drawing a line graph, it’s important to look at the range for the data before drawing a simple scale. When plotting the ‘Xs’ on the graph, the data must be presented accurately.

Learn how to read and plot quadratic graphs with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

How to Plot Two Things on the Same Y Axis in Excel. Properly formatted charts and graphs can help you grasp the patterns and trends hidden within the raw data of an Excel spreadsheet.

For example, you could show line graphs for temperature and humidity on top of each other. For this purpose, Excel lets you add a series of data to a chart and plot it on a second y-axis.