The first thing you need to do to edit a graph is to determine what specific changes or edits you want to make. This could include adjusting labels, scales, colors, data points, or any other visual or data-related elements of the graph. Once you have a clear idea of what changes are needed, you can proceed to use the appropriate software or tools to make those edits. Planning and knowing what you want to achieve with the edit is an essential first step in the editing process.