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The Picture at the End

Part of the Inequalities & Absolute Value section of Coddy's Algebra journey. Lesson 61 of 61.

A solution is finished when you can draw it on the number line. Take ∣x∣>2\left|x\right| > 2. It solves to x<−2x < -2 or x>2x > 2. The picture is two rays pointing away from each other, with open dots at -2 and 2. An "and" gives one segment. An "or" gives two rays. A single inequality gives one ray.

Draw the solution on the number line. Use a filled dot when the endpoint is included and an open dot when it is not. Shade every value that makes the inequality true.

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Challenge

Hard

Solve ∣x−1∣≥2\left|x-1\right| \ge 2 and show the solutions on the number line.

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