The function is
.
(a)
\The point is
.
Substitute the point
in
.


(b)
The point is
.
Substitute the point
in
.
(c)
The point is
.
Substitute the point
in
.


(d)
The point is
.
Substitute the point
in
.

(e)
The point is
.
Substitute the point
in
.
(f)
The point is
.
Substitute the point
in
.
(a) 
(b) 
(c) 
(d) 
(e) 
(f) 
\