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

example 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.

example of Abscissa
  • A. 4
  • B. - 4
  • C. 3
  • D. 1

Correct Answer: A


  • 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
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