This issue has been answered here: https://codap.concord.org/forums/topic/regression-line-broad-boundaries/#post-8073But I had another couple of ideas:1. You could open the graph in the draw tool (see camera icon) and annotate it any way you like.2. You could put the image online and import it, then make the graph transparent in the style palette (paint brush), adjust the scale of the graph using the axes, and overlay the graph on your image.See CODAP doc shared here.