Math Sketch 220 - "Inequalities" (12-17-15)
The following videos demonstrate how to graph one-variable inequalities on a number line. Examples include basic algebra, negatives, and absolute values.
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Graphing Inequalities on a Number Line
1) Determine "Critical points"
2) "Open" or "Closed" circles
3) Test Regions and shade
Notes, practice tests, & examples of number line inequalities