Write the inclination of a line which is:
(i) parallel to x-axis.

Answer

To find the inclination of a line that is parallel to the x-axis, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Inclination**: The inclination of a line is defined as the angle (θ) that the line makes with the positive direction of the x-axis, measured in the anticlockwise direction.

2. **Identifying the Line**: A line that is parallel to the x-axis is a horizontal line. This means it does not rise or fall as it moves along the x-axis.

3. **Determining the Angle**: Since a line parallel to the x-axis does not deviate from the horizontal, the angle it makes with the positive x-axis is 0 degrees.

4. **Conclusion**: Therefore, the inclination of a line that is parallel to the x-axis is 0 degrees.

### Final Answer:
The inclination of a line which is parallel to the x-axis is **0 degrees**.

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