Answer:
D. The range of the function is all real numbers greater than or equal to 0.
Step-by-step explanation:
The graph of the function [tex]y=\sqrt{-x}[/tex] is shown in attached diagram.
1. The domain of the function is the set of all possible values for input (for x). Hence, the domain of this function is
[tex]x\in (-\infty,0][/tex]
2. The range of the function is the set of all possible values for output (for y), so the range of this function is
[tex]y\in [0,\infty)[/tex]
As you can see, only option D is true - The range of the function is all real numbers greater than or equal to 0.
