Please help with explanation!

Suppose that f(x) = 7x - 41n(x), 0. (A) List all critical numbers of f . If there are no critical values, enter "NONE. Critical numbers = (B) Use interval notation to indicate where f (x) is increasing. Note: Use "INF' for oo, "INF' for -oo, and use "U" for the union symbol. Increasing: (C) Use interval notation to indicate where f (x) is decreasing. Decreasing: (D) List the c-coordinates of all local maxima of f. If there are no local maxima, enter "NONE. T values of local maxima = (E) List the x-coordinates of all local minima of f. If there are no local minima, enter "NONE. c values of local minima = (F) Use interval notation to indicate where f (x) is concave up. Concave up: (G) List the c values of all inflection points of f. If there are no inflection points, enter "NONE. c values of inflection points = (H) Use all of the preceding information to sketch a graph of f. When you're finished, enter a "1" in the box below. Graph Complete:Find two numbers A and B (with A