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
.