Is this question worded poorly or is it just me? Three charges are on the y-axis. Charges -q are at y = ±d and charge + 2q is at y = 0. (a) Determine the electric ﬁeld E along the x-axis. (b) Verify that your answers to part a has the expected behavior as x becomes very small and very large. what i don't get is that the charge on y=0 can be anywhere on the x-axis so i don't know how to get the field on the x-axis when i can place that charge anywhere. can someone verify if this question is legit?