Lemma
EasyInequalities
OpenStax, Algebra and Trigonometry 2e §2.7 Linear Inequalities and Absolute Value Inequalities · Example 11 · Algebra · Inequalities

Using a Graphical Approach to Solve Absolute Value Inequalities

Given the equation determine the x-values for which the y-values are negative.

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OpenStax, Algebra and Trigonometry 2e · §2.7 Linear Inequalities and Absolute Value Inequalities · Example 11

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