AB 3.
(b)(c)AB 4.
Part B
(a) Refer   back    to  the figure  for Part    B.
The average value   of  a   function    on  an  interval    is  the area    under
the graph   of  the function    divided by  the interval    width,  here    .
From    part    (a) you know    that    the area    of  the region  is  given   by  .    Since   ,   as  k
increases   the area    of  the region  approaches  3π.
(a) The slope   field   for the nine    points  indicated   is: