x-coordinate
Definition of x-coordinate
- The first number in an ordered pair is the x-coordinate.
The x-coordinate of a point tells how far to move left or right from the origin along the x-axis.
Examples of x-coordinate
- In the ordered pair (2, 4), the x-coordinate is 2.
- In the ordered pair (- 1, 7), the x-coordinate is - 1.
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To reach the point (1, 3), move 1 unit to the left from the origin and then 3 units up.
Solved Example on x-coordinate
Which of the points has - 4 as the x-coordinate?
Choices:
A. D
B. C
C. B
D. A
Correct answer: D
Solution:
Step 1: The ordered pair for the point D is (- 2, 4). So, D has – 2 as the x-coordinate.
Step 2: The ordered pair for the point C is (2, 2). So, C has 2 as the x-coordinate.
Step 3: The ordered pair for the point B is (3, - 2). So, B has 3 as the x-coordinate.
Step 4: The ordered pair for the point A is (- 4, - 2). So, A has – 4 as the x-coordinate.
Step 5: So, the point A has – 4 as the x-coordinate.
Related Terms for x-coordinate
- Coordinate Plane
- Ordered Pair
- x-axis
- Origin
Additional Links for x-coordinate
