(a) On what intervals is fincreasing? (Select all that apply.)(0, 2)(0, 3)(0, 6)(2, 4)(3, 6)(4, 6)(6, 8)(6, 9)(8, 9)none of these(b) On what interval(s) is fdecreasing? (Select all that apply.)(0, 2)(0, 3)(0, 6)(2, 4)(3, 6)(4, 6)(6, 8)(6, 9)(8, 9)none of these(c) At what value(s) of x does fhave a local maximum? (Select all that apply.)12345678none of these(d) At what value(s) of x does fhave a local minimum? (Select all that apply.)12345678none of these(e) On what interval(s) is fconcave upward? (Select all that apply.)(0, 2)(0, 3)(0, 6)(2, 4)(3, 6)(2, 6)(6, 9)(5, 9)(0, 9)none of these(f) On what interval(s) is fconcave downward? (Select all that apply.)(0, 4)(0, 3)(0, 6)(2, 4)(3, 6)(4, 6)(6, 9)(8, 9)none of these(g) What are the x-coordinate(s) of the inflection point(s) of f? (Select all that apply.)12345678none of these