BvU, The rod begins at x=0 and goes for a distance (L). I am not sure if you can open this, but it has the image. https://www.webassign.net/serpse8/23-p-036.gif
1. Problem Statement
A uniformly charged rod of length L and total charge Q lies along the x-axis as shown in in the figure below. (Use the following as necessary: Q, L, d, and ke.)
(a) Find the components of the electric field at the point P on the y-axis a distance d from the origin...