Explain this strange system?

Question

There is a system "A" having "+n" points on its axis and there is another system "B" having identical "+n" points on its axis but away from system "A".What would be the center & nature of the axis joining "+n" of system "A" & "+n" of system "B"?
take "+n" as "+1".

Answer 1

center is at (A+B)/2 and nature of axis is in the mid of A and B