![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
Observe the graph:
\The graph is in the shape of a inverted U reflected about ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8da2268e35b6b6daab9c47f71c4c8bf4.png\")
-axis and shifted left up ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2a06887749c014f55973fb0163eb3e52.png\")
units. .
Hence, the graph represents a quadratic function.
\The graph is parent function of quadratic functions is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6f2f0e7dd83f720687c204e29137ba19.png\")
.
The set of real numbers, and the range is the set of real numbers greater than or equal to ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fcd348ebf66f4047fc23f05f2c058874.png\")
.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The graph represents a quadratic function.