\
Let .
Graph of is given.
(a) Determine for
and
.
Find .
.
Property of definite integral: .
Therefore, .
Find .
.
.
Find .
.
Geometrically area under the graph is sum of the areas above
\the axis and sum of areas below the
axis.
Definite integral property: .
.
\
Find .
.
.
Find .
.
.
Find .
.
.
\
Find .
.
.
\
(b)
\Determine .
Estimate .
.
\
(c)
\At ,
.
The function has the maximum value at
.
At ,
.
The function has the minimum value at
.
\
\
(d)
\ Rough graph of the function :
Plot the points for and
.
\
(a) ,
,
,
,
,
and
.
(b) .
(c)
\The function has the maximum value at
.
The function has the minimum value at
.
(d)
\