All real numbers at most 7 units from 0

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !

The seventh-grade students at charleston middle school are choosing one girl and one boy for student council. their choices for girls are michaela (m), candice (c), and raven (r), and for boys, neil (n), barney (b), and ted (t). the sample space for the combined selection is represented in the table. complete the table and the sentence beneath it.

What are the domain and range of the function below? a) domain: (-4,0) range: [-2,infinity) b) domain: (-3,0) range: [-2,infinity) c) domain: (-infinity,infinity) range: [-2, infinity) d) domain: [-2,infinity) range: (-infinity,infinity)