Respuesta :

You'll need to share the graph.  I imagine the graph shows points C and D plotted, and that you can read off the x- and y-coordinates from the graph.  Once you have these coordinates (x,y) for each of the two points C and D, 
use the distance formula (or the closely related Pythagorean Theorem) to calculate the straight-line distance between C and D.  Show your work, please.