The function is
.
The transformation function is
.
Change of base formula :
.


Vertical shrink :
, shrink the graph of
vertically by a factor of
.
shrinks the graph of
vertically by a factor
, where the value of
depends on the values of
.
Case 1 :
\Check the logarithm function
for
.
For an example, consider
.
Substitute
in
.


shrinks the graph of
vertically by a factor of
.
Case 2 :
\Check the logarithm function
for
.
For an example, consider
.
Substitute
in
.



Property of logarithm :
.

Reflect the graph :
, reflect the graph of
about the
-axis.
reflect the graph of
about the
-axis and shrinks vertically by a factor of
.
shrinks the graph of
vertically by a factor
.