Answer:
The correct option is 4. The domain of the function are all real numbers greater than or equal to –3.
Step-by-step explanation:
Domain is the set of all possible inputs or x-values, for which the given function is defined.
The given graph is defined form -3 to positive infinity. The point -3 included in the set of input because there is a closed circle at x=-3.
So, domain of the function are all real numbers greater than or equal to –3.
[tex]Domain=\{x|-3\leq x,x\in R\}[/tex]
[tex]Domain=[-3,\infty)[/tex]
Therefore the correct option is 4.