a. Find the open interval(s) on which the function is increasing and decreasing. b. Identify the function's local and absolute extreme values, if any, saying where they occur. h(x )= x - 4x2 a. On what open interval(s), if any, is the function increasing? Select the correct choice below and fill in any answer boxes within your choice. O A. (Type your answer in interval notation. 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