\
Observe the graph of the function : \ \
\
Amplitude is
.
\
Period is
.
\
\
Amplitude :
.
\
Period :
.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2a06887749c014f55973fb0163eb3e52.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0f357163c7f5f7cd26e720e8c2059063.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2a06887749c014f55973fb0163eb3e52.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0f357163c7f5f7cd26e720e8c2059063.png\")
.