![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
Observe the graph, the graph of the function represents a parabola.
\The parent function is square function ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d9e4f8d33f390f35b1322abec4283c1a.png\")
.
The parabola open upward.
\The parabola graph grows twice as fast as ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=da2a786966a220e26eb2ce2835c5e0ae.png\")
.
Therefore, the function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f57a80215961c5731abb97a0eff6064a.png\")
.
Option "I" is correct.
\![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
Option "I" is correct.