If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y ... charts in Excel. By doing this, the curves in the graph would ...

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.

Whatever the purpose, adding ... your Excel workbook and create an initial single-series chart or use an existing one. 2. Select your graph and click on the ‘Chart Design’ tab at the top of the Excel ...