1, the point representing -4 on the number axis is located on the left side of the origin, and the distance from the origin is (4) unit lengths.

2. There are (2) points on the number axis with a distance of 5 from the origin, and the number represented is (5, -5).

3. On the number axis, the number represented by points with a distance of-1 three unit lengths is (-4,2).

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