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Topic: [ap-calculus] TI-89 question
Replies: 1   Last Post: Sep 27, 2012 8:17 PM

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Bill Maguire

Posts: 6
Registered: 4/19/10
Re: [ap-calculus] TI-89 question
Posted: Sep 27, 2012 8:17 PM
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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.
Jewel Filipovich <jfilipov@lamar.k12.ga.us> writes:
>I have used a TI-89 for a long while and never come across this problem.
>One of my student's calculator: when you ask it to determine a derivative
>entered as d(2x^2 +3x,x), I get an answer of just 3, rather than 4x + 3.
>It does not matter if you put multiplication signs in between either. Any

I just tried it on my TI-89 and I get 4x +3. Perhaps it's a setting in
MODE. Are you set to MODE:FUNCTION?

William F. Maguire
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