There is a line goes through a hollow point (2,8) and a solid point (8,6). Write the domain and range of each function using interval notation.

Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
Question: There is a line goes through a hollow point (2,8) and a solid point (8,6). Write the domain and range of each function using interval notation.

Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
Question: There is a line goes through a hollow point (2,8) and a solid point (8,6). Write the domain and range of each function using interval notation.
