Definition of Number Line
A line that represents the set of all real numbers in order is called a number line.
More About Number Line
- Usually a number line is marked showing integer values.
- The distance between any two consecutive integers on a number line is the same.
Video Examples: Number Line
Examples of Number Line
The figure shown below is a number line.
Solved Example on Number Line
Ques: Identify the number line showing the interval [- 4, 5).
A. Graph A
B. Graph B
C. Graph C
D. None of the above
Correct Answer: C
Step 1: The number line for the interval [- 4, 5) is shown in Graph C.