For the following function, a) give the coordinates of any critical points and classify each point as a relative maximum, a relative minimum, or neither; b) identify intervals where the function is increasing or decreasing; c) give the coordinates of any points of inflection; d) identify intervals where the function is concave up or concave down, and e) sketch the graph. h(x)=5x-15x D. Here are no relative mimum points and there are no relative maximum points. b) On what interval(s) is h increasing or decreasing? Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. A. The function is increasing on (-00, -1),(1,00). The function is decreasing on (-1,1). (Simplify your answers. Type your answers in interval notation. Use a comma to separate answers as needed.) OB. The function is decreasing on . The function is never increasing. (Simplify your answer. Type your answer in interval notation. Use a comma to separate answers as needed.) OC. The function is increasing on The function is never decreasing. (Simplify your answer. Type your answer in interval notation. Use a comma to separate answers as needed.) OD. The function is never increasing or decreasing. c) What are the coordinates of the inflection point(s)? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The coordinates of the inflection point(s) are (0,0). (Simplify your answer. Type an ordered pair. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) OB. There are no inflection points. d) On what interval(s) is h concave up or concave down? Select the correct choice below and fill in the answer box(es) to complete your choice. (Simplify your answer. Type your answer in interval notation. Use a comma to separate answers as needed.) OA. The function is concave up on OB. The function is concave up on and concave down on and is never concave down. His never concave up.