Question 63530
2y+x<4
3x-y>1
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solve each for "y" to get:
y<(-1/2)x+2
y>3x-1
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Graph the equality:
y=(-1/2)x+2
y=3x-1
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Your graph is the intersection of the half-planes 
below y=(-1/2)x+2 and above y=3x-1.
{{{graph(300,200,-10,10,-10,10,(-1/2)x+2,3x-1)}}}
Cheers,
Stan H.