Definition of Open Interval
More about Open Interval
Example of Open Interval
Solved Example on Open Interval
Identify the interval that represents the shaded part of the number line shown.
A. (- 3, 2)
B. [2, - 3]
C. [- 3, 2]
D. (2, - 3)
Correct Answer: A
Step 1: In the given line, the shaded part represents the set of all the numbers between – 3 and 2.
Step 2: It is clear that the numbers – 3 and 2 are excluded.
Step 3: An open interval represents a set excluding its end points.
Step 4: So, (- 3, 2) represents the given line.
Related Terms for Open Interval