![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The quadratic function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7c7d8d95fedf4cd59d8d63f8d8d79ef1.png\")
.
Graph:
\Graph the function :
![\"\"](\"/userfiles/23-255-43(1).gif\")
Observe the graph:
\The function opens downwards and it has a maximum value
\The maximum value of the function is the ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b1f02a70f7489dd3b8742e9e1c94d6d0.png\")
-coordinate of the vertex.
The maximum value of the function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3f5a05cedef1e3763a7751335c08383b.png\")
.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The maximum value of the function is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3f5a05cedef1e3763a7751335c08383b.png\")
.