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Susan Cantey
Posts:
1,596
From:
Cincinnati Ohio
Registered:
7/20/09


Re: re:[apcalculus] alternate definition of derivative
Posted:
Sep 16, 2012 2:36 PM


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.
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