![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The quadratic function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ba04ff968e9a0de34458b581e000df88.png\")
.
Graph:
\Graph the function :
![\"\"](\"/userfiles/23-255-44.gif\")
Observe the graph:
\The function opens upwards and has a minimum value.
\The minimum 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 minimum value of the function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5293c686201657fdacfc377695120802.png\")
.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The minimum value of the function is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5293c686201657fdacfc377695120802.png\")
.