In this lesson, we learn about the properties of inequalities and how they differ from the properties of equalities. We explore how adding, subtracting, multiplying or dividing by the same number can be used to preserve the solution set of an inequality. However, we need to be careful when multiplying or dividing by a negative number, as it requires us to switch the inequality symbol. These properties are essential in solving and graphing inequalities.
Introduction to Linear Inequalities and Properties of Inequalities
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