![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b2ad67e5cd2c385efaa5625be03b0f98.png\")
.
a.Degree of the function.
\Since it is odd degree polynomial function.
\b.Find the end behavior.
\Since end behavior is in opposite direction with leading coefficient is positive.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=113691d41750ae02b9cebbc389ef8726.png\")
c.Find the number of real zeros.
\There are three ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8da2268e35b6b6daab9c47f71c4c8bf4.png\")
-intercept and it has three real zero.
Therefore the polynomial function matches with the graph D.
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
Option D is right choice.