NUMBER LINE
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).
Choices:
A. Graph AB. Graph B
C. Graph C
D. None of the above
Correct Answer: C
Solution:

Step 1: The number line for the interval [ 4, 5) is shown in Graph C.
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