y-coordinate
Definition of y-coordinate

• The second number in an ordered pair is the y-coordinate.
  The y-coordinate of a point tells how far to move up or down from the origin along the y-axis.

Examples of y-coordinate

• In the ordered pair (2, 4), the y-coordinate is 4.
• In the ordered pair (1, - 7), the y-coordinate is - 7.
• To reach the point (1, 3), move 1 unit to the left from the origin and then 3 units up.

Solved Example on y-coordinate

Which of the points has 2 as the y-coordinate?

Choices:
A. A
B. B
C. C
D. D
Correct Answer: B
Solution:
Step 1: The ordered pair for the point A is (- 2, 4). So, A has 4 as the y-coordinate. 
Step 2: The ordered pair for the point B is (2, 2). So, B has 2 as the y-coordinate.
Step 3: The ordered pair for the point C is (3, - 2). So, C has - 2 as the y-coordinate.
Step 4: The ordered pair for the point D is (- 4, - 2). So, D has – 2 as the y-coordinate.
Step 5: So, the point B has 2 as the y-coordinate.         

Related Terms for y-coordinate

• Coordinate Plane
• Ordered Pair
• y-axis
• Origin