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| PAGE: 135 | SET: Exercises | PROBLEM: 7 |
The graph of the inequality 
is the shaded region and boundary of the inequality is 
.
To draw boundary of the inequality 
follow the simple steps.
1. Draw a coordinate plane.
2. Since inequality 
symbol is <, the boundary is not included in the solution set. Graph the boundary of the inequality with dashed line.
3. To determine which half-plane to be shaded use a test point in either half-plane. A simple choice is 
.
Substitute x = 0 in original inequality .
The statement is true.
4. Since the statement is true, shade the region that contains point .
Inequality graph is
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