1. The problem statement, all variables and given/known data The electric field at the point x=5.0cm and y=0 points in the positive x direction with a magnitude of 10.0N/C. At the point x=10.0cm and y=0, the electric field points in the positive x direction with a magnitude of 16.0 N/C. Assume this electric field is produced by a single point charge. Find the charge's location 2. Relevant equations E= kq/r^2 3. The attempt at a solution So my teacher substituted (x-5) for r^2 and got a quadratic equation. I solved for the quadratic but I'm not getting the right answer.