number line


Definition of Number Line

  • A line that represents the set of all real numbers in order is called a number line.

Examples of Number Line

  • The figure shown below is 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.

Solved Example on Number Line

Identify the number line showing the interval [- 4, 5).

Choices:
A. Graph A
B. 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.

 

Related Terms for Number Line

  • Real Numbers