Question 390393
how to graph these inequalities. 
Such as: y<x+1 and 3x + 4y greater than or equal to 12
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You have to graph the boundary in order to graph an inequality.
Graph y = x+1 as a dashed line.  It is the boundary
for y < x+1
Then shade the half-plane BELOW the boundary because you want
the graph of y BELOW x=1.
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{{{graph(400,300,-10,10,-10,10,y<x+1)}}}
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Graph 3x+4y >= 12
1st graph the boundary: y = (-3/4)x + 3
2nd shade the half-plane ABOVE the boundary.
{{{graph(400,300,-10,10,-10,10,y>(-3/4)x+3)}}}
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Cheers,
Stan H.