Grid lines add horizontal and/or vertical lines to your graph that aid in measuring graph values. By default, these grid lines use the color assigned to the "automatic" selection feature, which is ...

If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

Charts and sparklines are powerful data visualization tools in Excel. Here’s a guide to the most popular chart types in Excel and how to best use them. Microsoft Excel offers a plethora of tools for ...