Question 1011070
Graph the solution of the system 
x+y<4
x-y<4 
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y < -x+4
Sketch the line y = -x+4 as a dashed line.
shade the half-plane BELOW that boundary.
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y > x-4
Sketch the line y = x -4 as a dashed line
shade the half-plane ABOVE that boundary.
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Your answer is the intersection of the shaded areas.
Cheers,
Stan H.