Question

The graph (shown in red) below shows the solution set of which inequality?

Answer 1

Answer: 
C. $\sqrt{x} \ \textgreater \ -2$ 


Explanation:
If the line and dot are solid, than the x values can be 0 or higher. 
0 and 4 are two values that x can equal. 
the square root of 0 is 0, and the square root of 4 is 2. 
A, B and D do not work with those values, so the answer is C