1. The problem statement, all variables and given/known data In a certain region of space, the electric field along the x-axis is given by: E = 1.2x - 3.06, where E is in N/C and x is in meters. If you set the electric potential equal to zero at (4.39 m,0), find the electric potential, in V, at the point (7.22 m,0). 2. Relevant equations V = - ∫E * dl 3. The attempt at a solution V = - ∫ (1.2X-3.06) dx ⇒ V = - [1.2X2/2 - 3.06X]02.83 ⇒V=3.85 → which is http://www.dabur.com/odomos/images/wrong_sign.jpg [Broken] ...any suggestions?