(a)
\The differential equation is
and the point is
.

Apply integral on each side.
\

Let
.
Apply derivative on each side with respect to
.


.
Substitute
and
in
.



Substitute
.
.
Graph the function
for different value of
.
If
then
.
If
then
.
(b)
\Find the value of
, substitute
in
.

.
Substitute
in
.
The particular solution is
.
Graph the function
:
(a) Graph :
.
(b) Graph of particular solution
.
.