1. The problem statement, all variables and given/known data A line of charge with a non-uniform charge density lambda=ay, where a=−34.00 nC/m^2 lies along the y axis in the region 0≤y≤2.90 m. Calculate the electric potential of this line of charge at point P on the x axis a distance 0.80 m from the origin. Assume the potential equals zero at infinity. The given picture is of a line of charge along the y axis, of h length, with a point charge P, d=0.8m distance away from the line of charge. 2. Relevant equations ∆V = VB −VA = the negative integral E dl from a to b where E=-dV dV=kdQ/r dQ=lambdadl 3. The attempt at a solution To start, I used dQ=lamdadl=34nC/m^2 (y)dl. I substituted this in for dQ in dV, which I substituted into E in the integral. From there, I end up with the integral of k(34 x 10^-9)ydy/.8 from 0 to 2.9. Solving this equation though does not yield the correct answer and therefore I would appreciate some assistance. CORRECTION: The above work is an attempt to find the total charge, which was not clearly stated beforehand. Sorry.