Click to reveal the legend; click again to hide it. Across the top of the window, you'll see tabs labeled US Counties and North America. US Counties and North America are map frames, which are essentially individual maps made up of one or more map layers. In ArcMap, these were ...
An entry for the function is automatically added to the legend. If you do not want it to appear there, uncheck Add graph to legend. With the Line properties controls, you can change width, style, and color of the function line. Click Apply to preview or OK when done. Related topi...