Find the intervals on which the graph of f is concave upward, the intervals on which the graph of f is concave downward, and the inflection points.

Find the intervals on which the graph off is concave upward, the intervals on which the graph of f is concave downward, and the inection points. f(x) = - x6 + 36x5 - 36x+ 7 <: for what interval of x is the graph f concave upward select correct choice below and if necessary ll in answer box to complete your choice. oa. notation. type an exact answer. use a comma separate answers as needed. b. never upward. downward downward. determine coordinates any inection points a. x: d there are no>