In Microsoft Excel, to draw attention to a specific marker in a line chart, drop in a thin line, think of it as a marker.

How to Make Your Graph to the Same Scale on a Vertical & Horizontal Axis in Excel. When you create a graph in Excel, the software automatically sizes the X and Y axis lines, so the data you want ...

You can make a line graph in Excel in a matter of seconds using data already entered into the spreadsheet.