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

Solved Example on Abscissa

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.

Related Terms for Abscissa

• Axis
• Coordinate plane
• Horizontal axis
• Ordered pair
• Origin
• X-coordinate

Additional Links for Abscissa

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