Ordered pair

Definition

An ordered pair is a set of two elements written in a specific order, typically as (x, y), where x represents the horizontal coordinate and y represents the vertical coordinate.

5 Must Know Facts For Your Next Test

1. Ordered pairs are used to represent points on a Cartesian plane.
2. The first element of an ordered pair is called the abscissa or x-coordinate.
3. The second element of an ordered pair is called the ordinate or y-coordinate.
4. Ordered pairs can be used to describe solutions to equations in two variables.
5. Graphing multiple ordered pairs can help visualize functions and their behaviors.

Review Questions

• What do the elements in an ordered pair (x, y) represent?
• How is an ordered pair used to plot a point on a graph?
• What is the significance of the order in an ordered pair?

Related terms

Cartesian Plane: A two-dimensional plane defined by a horizontal axis (x-axis) and a vertical axis (y-axis).

Function:

A relation in which each input has exactly one output, often represented as f(x).

Domain:

\text{The set of all possible input values for which a function is defined.}