Given
f
(
x
)
=
1
x
+
11
f
(
x
)
=
1
x
+
11
, find the average rate of change of
f
(
x
)
f
(
x
)
on the interval
[
9
,
9
+
h
]
[
9
,
9
+
h
]
.
Your answer will be an expression involving
h
h
.