Two charged particles are shown in part a of the figure. particle 1 with charge q1

Two charged particles are shown in part a of the figure. Particle 1, with charge q1, is fixed in place at distance d. Particle 2, with charge q2, can be moved along the x axis. Figure b gives the net electric potential V at the origin due to the two particles as a function of the x coordinate of particle 2. The scale of the x axis is set by xs = 16.0 cm. The plot has an asymptote of V = 5.76 x 10^-7 V as x approaches infinity. What is q2 in terms of e?

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