Question

The domain of the function f(x)=$\sqrt{x+2}$ is given by _____

• A. $x>2$
• B. $x>-2$
• C. $x\ge -2$
• D. $x\ge 2$

Answer 1

The correct option is C $x\ge -2$

The domain of the function is the value at which the function has a possible real value of range.
Here, the function is valid only when $x+2$ which is under a square root should be $\ge 0$
So, $x+2\ge 0$
$=>x\ge -2$