Question

In order to be admitted into the United States Army, a person's height must be greater than or equal to 60 inches and less than 80 inches. Which graph represents these conditions?

Note: In a number line, a closed circle on the number gets included in the solution, while an open circle on the number will not get included in the solution.

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

Let the height of the person is $x\text{inches}.$

Then $x$ should be greater than or equal to 60 i.e. $x\ge 60$. So a closed circle will be present at point $60$.

Also $x$ should be less than 80 i.e. $x<80.$ So an open circle will be present at point $80$

Hence, is the correct representation of the given sitaution.