Complete parts (a) through (c) below for the given function. 5x f(x) = x ( lype your answer in interval notation. Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) O B. The function is never increasing. Find any intervals where the function is decreasing. Select the correct choice below and, if necessary, fill in the answer box within your choice. O A. The function is decreasing on the interval(s) (Type your answer in interval notation. Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) O B. The function is never decreasing. Find any relative maxima. Select the correct choice below and, if necessary, fill in the answer box within your choice. O A. There is a relative maximum at (Type an ordered pair. Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.)