This unit discusses linear inequalities and their graphs.

by Sal Khan
This video is an introduction to inequalities. It solves simple several simple inequalities and gives a visual aid to the solution on a number line.
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Inequalities Using Multiplication and Division

by Sal Khan
This video solves inequalities that involve multiplication and division. It gives examples of what to do with both positive and negative numbers. Number lines are used as an aid to demonstrate the solutions.
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Multi-Step Inequalities

by Sal Khan
This video solves several slightly complication inequalities and writes the solution in interval notation. It also uses number lines to demonstrate solutions.
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Compound Inequalities

by Sal Khan
This video solves several inequalities that have two sets of constraints by separating each problem into two inequalities. Number lines are used to demonstrate solutions.
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Absolute Value Equations

by Sal Khan
This video solves several absolute value problems. One problem graphs the boundary of an inequality region.
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Absolute Value Inequalities

by Sal Khan
This video explores how to think about and solve absolute value inequalities. Sal shows graphically what is going on.
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Graphing Inequalities

by Sal Khan
This video shows a standard technique for graphing inequalities using the equation of the corresponding equality to mark the boundary of the region of inequality.
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