Question 326173
The graph of the left hand side is in red.
The graph of the right hand side is in green.
You can pick out the region where the left hand side is less than or equal to the right hand side.
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{{{drawing(300,300,-6,6,-6,6,grid(1), graph(300,300,-6,6,-6,6, abs(x-1)+abs(x-3),4))}}}