If the coordinates of two points are A(3,4) and B(-2,5), then find the value of (abscissa of A) - (abscissa of B).

Answer

To find the value of (abscissa of A) - (abscissa of B), we will follow these steps:

1. **Identify the coordinates of points A and B.**
- The coordinates of point A are A(3, 4).
- The coordinates of point B are B(-2, 5).

2. **Determine the abscissa (x-coordinate) of point A.**
- The abscissa of point A is the x-coordinate, which is 3.

3. **Determine the abscissa (x-coordinate) of point B.**
- The abscissa of point B is the x-coordinate, which is -2.

4. **Calculate the difference between the abscissa of A and the abscissa of B.**
- We need to compute: (abscissa of A) - (abscissa of B) = 3 - (-2).

5. **Simplify the expression.**
- Subtracting a negative number is the same as adding its positive counterpart. Therefore, we have:
\( 3 - (-2) = 3 + 2 = 5 \).

6. **Write the final answer.**
- The value of (abscissa of A) - (abscissa of B) is 5.