1. The problem statement, all variables and given/known data In the figure, two point charges q1 = 3.40×10-5 C and q2 = 1.70×10-4 C are separated by a distance d = 0.10 m. Compute their net electric field E (x) as a function of x for the following positive and negative values of x, taking E to be positive when the vector E points to the right and negative when E points to the left. Plot your values in your notebook. What is E(-0.100)? 2. Relevant equations E(X)=k[(q1/x^2)-(q2/(d+x)^2)] 3. The attempt at a solution I used the above equation, but the answer was wrong. When E(-0.100), does that mean the x in the equation is also negative? I get the feeling I've messed up some of the signs.