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F) Use interval notation to indicate where f(x) is concave up
Only one that needs to be solved.
Problem 9. (1 point) Suppose that f(x)-7x-3ln(x), z>0 (A) List all critical numbers of f . If there are no critical values, enter 'NONE. Critical numbers 3/7 (B) Use interval notation to indicate where f(x) is increasing Note: Use 'INF' for oo, -INF' for-0o, and use 'U' for the union symbol. Increasing: (3/7,INF) (C) Use interval notation to indicate where f(z) is decreasing. Decreasing: (0,3/7) (D) List the a-coordinates of all local maxima of f. If there are no local maxima, enter 'NONE z values of local maxima NONE (E) List the z-coordinates of all local minima of f. If there are no local minima, enter 'NONE x values of local minima = | 3/7 (F) Use interval notation to indicate where f(z) is concave up. Concave up: NONE (G) List the r values of all inflection points of f. If there are no inflection points, enter 'NONE z values of inflection points-NONE (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: 1 Note: You can earn partial credit on this problem.