Question

The correct interval representation for the set $A=\{x:-2\le x<4\}$ is given by

• A. $(-2,4)$
• B. $(-2,4]$
• C. $[-2,4)$
• D. $[-2,4]$

Answer 1

The correct option is C $[-2,4)$

The semi-closed bracket $[x,y)$ is used when the left extreme value i.e $x$ is included in the set and the right extreme value i.e $y$ is not included in the set.
So, the correct option is $[-2,4).$