What is the domain of f?

Answer:
[tex]\huge \boxed{\mathrm{A}}[/tex]
Step-by-step explanation:
The domain of a function is all possible values for the value of x.
The denominator in a rational function cannot equal to 0.
[tex]x+2\neq 0[/tex]
Subtracting 2 from both sides.
[tex]x\neq -2[/tex]
The domain of the function is all real numbers except -2.