What do the differences between the points (as shown on the graph) represent? is the unit rate because it compares the change in y-values to the change in x-values of the points on the graph. is the unit rate because it compares the change in y-values to the change in x-values of the points on the graph. can be used to find the unit rate if one divides 7 by 2 and compares the result to 1. can be used to find the unit rate if one divides 2 by 7 and compares the result to 1.