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- do o find the potential difference between for each charge? which pairs?

- do i plot the potentials on a graph?

-what do they mean "as a function of x along the x-axis"? are they talking about the x-axis of the graph i'm supposed to plot?

## Homework Statement

plot the electric potential as a function of x along the x-axis for the following configuration of electric charges --> microC = microcoulomb, * = electric charge

+2 microC -3 microC +1 microC

------------*------------------------------------*--------------*------------

x = 0cm x = 4cm x = 6cm

## Homework Equations

potential difference V_ab = kq ( (1/r_b) - (1/r_b) ) where k = 9*10^9 constant, q = charge, Coulombs, r = radius in meters

## The Attempt at a Solution

can't really make an attempt until i know what the question is asking, do i just find the electric potential differences between the various charges above, using the above eq and plot them such that potential V is on the y-axis, and charge is on the x-axis?

help appreciated...