Summarize the pertinent information

Summarize the pertinent information obtained by applying the graphing strategy and sketch the graph of y = f(x) f(x) = 7x6 - 9x5 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The domain of f is (Type your answer in interval notation. Type an exact answer, using radicals as needed. Use a comma to separate answers as O B. The domain of f is empty