Question 683998
My LEAST favorite way is the table of values.  I prefer the vertex method using x=-b/2a.  Of course, the x-intercepts method is also nice, and also knowing that the vertex is always exactly HALFWAY beteen the two intercepts.  Of course, the problem may not have x-intercepts.  The vertex, where x=-b/2a, always works.


Dr. Robert J. Rapalje, Retired
Seminole State College of Florida


www.mathinlivingcolor.com.