On which axis do the given points lie:
(iv) `(0,-100)`

Answer

To determine on which axis the point (0, -100) lies, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Coordinates**: The given point is (0, -100). In this coordinate pair, the first number (0) represents the x-coordinate, and the second number (-100) represents the y-coordinate.

2. **Understand the Axes**: In a Cartesian coordinate system, the x-axis is the horizontal line where y=0, and the y-axis is the vertical line where x=0.

3. **Plot the Point**:
- Start at the origin (0, 0).
- Move along the x-axis: Since the x-coordinate is 0, we do not move left or right; we remain at the origin on the x-axis.
- Move along the y-axis: The y-coordinate is -100, which means we move downwards from the origin to the point (0, -100).

4. **Determine the Axis**: Since we did not move from the x-coordinate (stayed at 0), and we moved vertically down to -100 on the y-axis, we see that the point (0, -100) lies directly on the y-axis.

### Conclusion:
The point (0, -100) lies on the y-axis.

---