Question

Use interval notation to express the following:

The set of all numbers greater than or equal to −22.

Select the correct answer below:


A (−∞,−22]
B (−22,∞)
C (−∞,−22)
D [−22,∞)

Answer 1

D

Explanation:

The bracket means that it is inclusive so since the questions says that it has to be greater than or equal to, we can cross out B and C.

A means that it is all number less than or equal to -22 so it has to be D