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College Algebra  /  Alg 040  ·  Atom · ~20 seconds

Absolute Value

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The absolute value of a real number is its distance from zero on the number line, never negative: |−4| = 4 and |4| = 4.

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Distance ignores direction: −4 and 4 sit four units from zero on opposite sides, so the bars return 4 for both.

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