\
The function is .
Differentiate on each side with respect to .
Derivative of a absolute function: .
The denominator of the function cannot be zero.
\ and
.
and
.
The function is not defined when and
.
Therefore, the function is differentiable for all values except at and
.
\
Find the function in piecewise form.
\Definition of absolute function:
\If , then
.
If , then
.
is defined as
If , then
and
.
Thus, .
.
If , then
and
.
Thus, .
.
If , then
and
.
Thus, .
Therefore, the function is defined as
\
Find the derivative of the function.
\Find when
:
.
Differentiate on each side with respect to .
Find when
:
Differentiate on each side with respect to .
Find when
:
.
Differentiate on each side with respect to .
The derivative of the function .
\
Graph:
\Graph of the function
Graph the derivative function
\
(a) The derivative of the function .
(b)
\Graph of the function is
\Graph of the derivative function is
\.