PRECALCULUS
A.) what is the domain of the function?
B.) how about the range?

Answer:
Domain: {1, 2, 3, 4, 5, 6, 7}
Range: {15, 24, 28, 32, 36, 40, 44}
Step-by-step explanation:
Predominately, itemize 'x' aggregates as independent variables, whilst itemize 'y' aggregates as dependent variables, subject to alter pertaining to the independent variable.