The distance of a point from the y-axis is called its x-coordinate or _____________

Answer

To solve the question, we need to fill in the blank regarding the distance of a point from the y-axis.

### Step-by-Step Solution:

1. **Understanding the Coordinate System**:
- In a Cartesian coordinate system, every point is represented by a pair of numbers (x, y). Here, 'x' represents the horizontal distance from the y-axis, and 'y' represents the vertical distance from the x-axis.

2. **Identifying the Distance from the Y-Axis**:
- The distance of a point from the y-axis is essentially how far it is from that axis. This distance is represented by the 'x' value in the coordinate (x, y).

3. **Terminology**:
- The term used to describe the x-coordinate is known as the "abscissa." Therefore, when we refer to the distance of a point from the y-axis, we can also call it the abscissa.

4. **Filling in the Blank**:
- Based on the understanding that the x-coordinate is also known as the abscissa, we can fill in the blank in the question.

### Final Answer:
The distance of a point from the y-axis is called its x-coordinate or **abscissa**.

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