f x 9x x 3 A Find all critical numbers of f If there are no critical numbers enter NONE Critical numbers B Use interval notation to indicate where f a is increasing Note Use INF for co INF for o and use U for the union symbol Increasing C Use interval notation to indicate where f x is decreasing Decreasing D List the x coordinates of all local maxima of f If there are no local maxima enter NONE values of local maxima E List the x coordinates of all local minima of f If there are no local minima enter NONE values of local minima F Use interval notation to indicate where f x is concave up Concave up G Use interval notation to indicate where f x is concave down Concave down H List the values of all inflection points of f If there are no inflection points enter NONE