Final answer:
The domain of a linear function is the set of all real numbers. The correct option is A- x > 1.
Step-by-step explanation:
The domain of the graph of a linear function is the set of all possible x-values or inputs for the function. In the case of a linear function, the domain is the set of all real numbers. This means that any value of x is allowed for a linear function, and there are no restrictions.
For the given options, the correct answer is A- x > 1. This option represents the set of x-values greater than 1, which covers all the possible values for a linear function.