Ordered Pair
Definition of Ordered Pair

• A Pair of numbers used to locate a point on a Coordinate Plane is called an ordered pair.
  An Ordered Pair is written in the form (x, y) where x is the x-coordinate and y is the y-coordinate.

Examples of Ordered Pair

• Following are some examples of ordered pairs.
  (5, -2), (0, 0), (2, 5), (0.3, - 0.7)

More about Ordered Pair

• In three-dimensional cordinates, (x, y, z) gives the location of a point. It is called an ordered triple.
• The Ordered Pair (5, -2) means the point is located 5 units right and 2 units down the origin.
• The Point of Intersection of the x- and y- axes is called the origin. The Ordered Pair that describes the Origin is (0, 0).

Solved Example on Ordered Pair

Graph the Ordered Pair (- 4, 3) on the Coordinate Plane and call it A.

Choices:
A. Graph 1
B. Graph 2
C. Graph 3
D. Graph 4
Correct answer: A
Solution:
Step 1: Start at the origin.
Step 2: The x-coordinate of the given Ordered Pair is - 4. So, move 4 units to the left of the y-axis.
Step 3: The y-coordinate of the given Ordered Pair is 3. So, move 3 units up from the x-axis.
Step 4: Draw a dot and label it A. The Graph would look like the one below.

Step 5: Among the given graphs, Graph 1 matches with our graph.

Related Terms for Ordered Pair

• Coordinate
• x-coordinate
• y-coordinate
• Coordinate plane
• Point
• Origin

Additional Links for Ordered Pair

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