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Explain what absolute value means on a number line. Why is the absolute value of a number never negative? Finally, explain why opposite numbers like 1212 and 12-12 have the same absolute value.

Question: Explain what absolute value means on a number line. Why is the absolute value of a number never negative? Finally, explain why opposite numbers like 1212 and 12-12 have the same absolute value.

Sample answer: The absolute value of a number is its distance from 00 on the number line. Because distance cannot be negative, an absolute value is always zero or positive. Opposite numbers like 1212 and 12-12 have the same absolute value because they are both exactly 1212 units away from 00.

Key points:

  • Absolute value represents a number's distance from 00 on the number line.
  • Distance cannot be negative, so absolute value is never negative.
  • Opposite numbers share the same absolute value because they are the same distance from 00.

Rubric: A correct response should define absolute value as the distance from 00, explain that distance is never negative, and state that opposites (like 1212 and 12-12) are the same distance from 00.

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Updated 2026-06-18

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