The functions are
and
.
The functions are in the form of
.
Where
is amplitude,
is vertical shift and
is stretch along
- axis.
Compare
with
.
Amplitude
.
Period of a function is
.

Phase shift of function is
.

Compare
with
.
Amplitude
.
Period of a function is
.

Phase shift of function is
.

The functions
and
have same amplitude.
Graph the functions.
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Observe the graph:
\The functions
and
are differ in phase shift
.
The graph of
is shift of
units to the right.
The graph of
is shift of
units to the right.