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Topic: [ap-calculus] alternate definition of derivative
Replies: 3   Last Post: Sep 14, 2012 4:31 PM

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Carole Stevens

Posts: 10
Registered: 5/17/12
Re: [ap-calculus] alternate definition of derivative
Posted: Sep 14, 2012 2:14 PM
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It is not okay. c is not appoaching x; c is the location that the
"movable" x is approaching, so even though "slope" is interchangeable, the
limit was written incorrectly.

On Fri, Sep 14, 2012 at 8:11 AM, Kandice Tucker <ktucke@spartanburg3.org>wrote:

> I have a student ask if you can write the definition of derivative
> limxapproaches c of [f(c)-f(x)]/[c-x]. He used it this way and got the
> correct answer. He argued that the slope is interchangeable. He got the
> correct answer in the end. Is this ok? Thanks,
> Kandice Tucker
> Broome High School
>
> ====
> Course related websites:
> http://apcentral.collegeboard.com/calculusab
> http://apcentral.collegeboard.com/calculusbc
> ---
> To search the list archives for previous posts go to
> http://lyris.collegeboard.com/read/?forum=ap-calculus





--

*Carole Stevens
*Monsignor Kelly Catholic High School<http://www.monsignorkellyhighschool.com/>
409-866-2351 ext 159
409-860-0874 fax
CStevens@MKCHS.com

====
Course related websites:
http://apcentral.collegeboard.com/calculusab
http://apcentral.collegeboard.com/calculusbc
---
To search the list archives for previous posts go to
http://lyris.collegeboard.com/read/?forum=ap-calculus



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