Answer:
D. all possible inputs of the function
Explanation:
Lets look at the options one by one
A. all possible outputs of the function
This is not the correct option because the possible outputs are range of the function
B. all possible F(x) values of the function
Not correct because the f(x) values are the output of the function.
c. all possible (x, y) coordinates
This is also not correct because domain only consists of all the values of independent variable that make the function produce some output
D. all possible inputs of the function
This is the correct answer because domain is the set of all values of independent variable for which the function is not undefined ..