Suppose that
f(x) = 8 x - 4 \ln(x), \quad x > 0.

(A) List all the critical values of

(B) Use interval notation to indicate where

** Note: ** Use 'INF' for

Increasing:

(C) Use interval notation to indicate where

Decreasing:

(D) List the

(E) List the

(F) Use interval notation to indicate where

Concave up:

(G) Use interval notation to indicate where

Concave down:

(H) List the

(I) Use all of the preceding information to sketch a graph of

Graph complete:

You can earn partial credit on this problem.