Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.



RE: [apcalculus] Double Derivatives
Posted:
Oct 23, 2012 8:37 PM


NOTE: This apcalculus EDG will be closing in the next few weeks. Please sign up for the new AP Calculus Teacher Community Forum at https://apcommunity.collegeboard.org/gettingstarted and post messages there.  Nope. Consider f(x) = x^4 at the origin.
Lin
Lin McMullin Richardson, TX
My Blog for calculus teachers: teachingcalculus.wordpress.com
I am the moderator of the AP Calculus EDG. I am writing here simply as a member of the EDG. This post is not in any way an "official" announcement from the College Board. When the College Board asks me as the moderator, to share information with you, that email will be clearly marked as being""From the Moderator.""
From: Debbie Bricker [mailto:DBricker@cathedralcatholic.org] Sent: Tuesday, October 23, 2012 16:13 To: AP Calculus Subject: [apcalculus] Double Derivatives
 
In using the second derivative test for extrema, you may get the second derivative to equal zero when plugging in a critical number and the test then fails. Will this point then be a POI?
Debbie
To search the list archives for previous posts go to http://lyris.collegeboard.com/read/?forum=apcalculus
 To search the list archives for previous posts go to http://lyris.collegeboard.com/read/?forum=apcalculus



