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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
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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
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