The function is
.
The function is a sine function.
\The standard form of the sine function is
.
Graph :
\Graph of the sine function
:

The function is
.
Now substitute
instead of
in the sine function.
.
So
.
Horizontal shrink :
, stretch the graph of
horizontally by a factor of
.
Therefore,
is the graph of
horizontally stretch by a factor of
.
Graph :
\Graph of the function
.
(1) Draw the coordinate plane.
\(2) Graph of the function
.
(3) Stretch the graph of
horizontally by a factor of
.

Graph of the function
is
.