DEFINITION OF ABSCISSA

Definition of Abscissa

Abscissa is the value of the X-coordinate on a coordinate plane.
Abscissa is the value of the horizontal axis on a coordinate plane.

Examples of Abscissa

The ordered pair of point P is (1, 4)
The abscissa of the point (2, 5) is 2
The abscissa of the ordered pair (1, 4) is 1

Video Examples: Abscissa

Solved Example on Abscissa

Ques: Identify the abscissa of the point D.

Choices:

A. 4
B. - 4
C. 3
D. 1

Correct Answer: A

Solution:

Step 1: The abscissa is the value of the X-axis on the coordinate plane
Step 2: The ordered pair of point D is (4, - 4)
Step 3: So, the abscissa of point D is 4

Quick Summary

Abscissa is the x-coordinate.
It represents the horizontal position on a graph.

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🍎 Teacher Insights

Use visual aids and real-world examples to illustrate the concept. Emphasize the difference between x and y coordinates.

🎓 Prerequisites

Understanding coordinate planes
Identifying x and y axes
Ordered pairs

Check Your Knowledge

Q1: What is the abscissa of the point (3, -2)?

3 -2 0 5

Q2: The abscissa represents the:

Vertical distance Horizontal distance Diagonal distance Z-coordinate

Frequently Asked Questions

Q: What is the difference between abscissa and ordinate?
A: Abscissa is the x-coordinate (horizontal), and ordinate is the y-coordinate (vertical).

Q: How to find the abscissa of a point?
A: The abscissa is the first number in the ordered pair (x, y).