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Topic: re:[ap-calculus] alternate definition of derivative
Replies: 1   Last Post: Sep 16, 2012 2:36 PM

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Susan Cantey

Posts: 1,596
From: Cincinnati Ohio
Registered: 7/20/09
Re: re:[ap-calculus] alternate definition of derivative
Posted: Sep 16, 2012 2:36 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

As long as the initial derivative reads f ' (c). For f ' (x) we must have
c -> x.

SC

----- Original Message -----

> In algebra, I tell students that it doesn't matter which point you label
> (x1,y1) and which is (x2,y2) as long as you keep them consistent. All
> your student has done is switch the points. I think it is perfectly fine.
> c is still the "fixed point" x is still approaching it.




Appended to this posting by the moderator:
This ap-calculus 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/getting-started and post messages there.

Lin McMullin
Calculus EDG Moderator
====
Course related websites:
http://apcentral.collegeboard.com/calculusab
http://apcentral.collegeboard.com/calculusbc
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