5. Linear Inequalities
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To graph the inequality, you have to draw the boundary line, then decide which side of the boundary line to shade.
Graphing an inequality involves two main steps.
To graph the inequality, we first have to draw the boundary line. The equation of a boundary line is written by replacing the inequality symbol from the inequality with an equals sign.
Inequality | Boundary Line |
---|---|
- x+0.25y≤ -1.75 | - x+0.25y=-1.75 |
x= 0, y= 0
Zero Property of Multiplication