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Graph of Inequalities

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m
1
1.5
b
1
0.4
reverse inequality
y
1
m
2
0.3
b
2
2.1
reverse inequality
y
2
m
3
-0.8
b
3
1.3
reverse inequality
y
3
The graph of a linear equation is a straight line. The graph of a linear inequality is the half of the plane to one side of the line. The solution of a system of inequalities is the set intersection of the regions for each inequality. It may be the empty set, a finite polygon, the inside of an acute angle, a strip, and so on, depending on the nature of the inequalities.
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