Long description
The horizontal axis of all the three graphs represent speakers, X sub 1, on the horizontal axis from 0 to 40 in increments of 20 with the second graph having point 30 additionally. The vertical axis of all the graphs represent stereo receives, X sub 2, from 0 to 60 in increments of 20.
The first graph for original problem shows the following:
Points a, b, and c are plotted at the coordinates 0 X sub 1 at 20 X sub 2, 18 X sub 1 at 17 X sub 2 approximately, and 20 X sub 1 at 0 X sub 2, respectively, with point a representing the optimal solution.
A downward sloping line emerges from point a, passes through point b, and concludes at 40 X sub 1 at 0 X sub 2, representing the expression 2 X sub 1 plus 4 X sub 2 lesser than or equal ...
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