Hey guys, I have a problem that I really have no idea what to do. It was discussed in class that we do not need to know how to integrate or use the dot product-- any of the complex stuff. 1. The problem statement, all variables and given/known data The electric field in a given region in space is given by (3 i - 1 j) x 10^5 N/C. Find the potential difference between points a (3, 1) and b (7, -1). The coordinates are in mm 2. Relevant equations All I have is V =kq/r but I'm not sure what to do with this I also know that V=-E*r = kq/r2 - kq/r1 because the field is not uniform. 3. The attempt at a solution I drew out a chart and plotted a and b and the marked out where the unit vectors ultimately lead to.. I don't actually know what the question is asking and where to start. THanks in advance for your help.