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Question 3

Zero is marked on a number line. Which statement about its opposite is correct?

  1. The opposite of 0 is -0, a separate point just left of 0.
  2. The opposite of 0 is 0 itself, because 0 has no distance from zero to reverse.Bonne réponse
  3. 0 has no opposite.
  4. The opposite of 0 is 1, the next mark to its right.

Explication

An opposite lies the same distance from zero on the other side, and zero stands at no distance at all, so reflecting it leaves the point exactly where it is. Writing a minus sign in front of zero does not move the mark, so there is no separate point just to its left.

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Question 3: Zero is marked on a number line. Which statement about its… · Integers and Negative Numbers · Questena