Question 328219
First, graph {{{y=x-3}}}.
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{{{graph(300,300,-10,10,-10,10,x-3)}}}
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Choose a point not on the line.
(0,0) is always a good choice, if available.
Test the inequality
{{{0<=-3}}}
False.
If the inequality is satisfied, the point is in the solution region.
Shade that region.
Otherwise, shade the other region.
In this case, shade the region that doesn't include (0,0). 
*[invoke plot_any_inequality "y <= x-3", -10, 10, -10, 10, 300, 300]
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First graph {{{y=-x+5}}}.
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{{{graph(300,300,-10,10,-10,10,-x+5)}}}
.
.
.
Choose a point not on the line.
(0,0) is always a good choice, if available.
Test the inequality
{{{0<=5}}}
True.
If the inequality is satisfied, the point is in the solution region.
Shade that region.
Otherwise, shade the other region.
In this case, shade the region that includes (0,0). 
*[invoke plot_any_inequality "y <= -x+5", -10, 10, -10, 10, 300, 300]