Suppose that
f(x) = \frac{3 x^2}{x^2 + 25}.

(A) List all critical numbers off .
If there are no critical numbers, enter 'NONE'.

Critical numbers=

(A) List all critical numbers of

Critical numbers=

(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) List all horizontal asymptotes of

Horizontal asymptotes

(J) List all vertical asymptotes of

vertical asymptotes

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

Graph Complete:

You can earn partial credit on this problem.