1. Right and Wrong Ways to Use your calculator on the AP Calc Exam Notes taken by Sean Bird at Greg Hill’s [email_address] http://cstaff.hinsdale86.org/~ghill presentation at the T 3 International Conference in DC 2005. Updated April 26, 2008 (partially for the TI-Nspire CAS) [email_address] http://covenantchristian.org/bird
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7. #92. Where is g ( x ) decreasing between -1 ≤ x ≤ 3 Doing this on the TI-Nspire, finding the zeros is quite easy. 1. Open up a G&G (Graphs & Geometry). This can be done using /I to insert a new page, or c2 2. Set up the window using the given domain. b4x , v1e3· 3. Graph the DERIVATIVE (to consider where it is negative) 4. Optional: Zoom Fit b4A (you could have already set the y-axis to be from about -1 to 1 since sine oscillates between that.) 5. On the TI-Nspire, the value of the intersection points between two graph are automatically given, so graph f2(x)=0 and press b63 /x to grab and move text to make it easy to see ( /G removes entry line)
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Editor's Notes
From the graph we can see that f ‘ changes sign four times in the interval…. Answer is D
![Right and Wrong Ways to Use your calculator on the AP Calc Exam Notes taken by Sean Bird at Greg Hill’s [email_address] http://cstaff.hinsdale86.org/~ghill presentation at the T 3 International Conference in DC 2005. Updated April 26, 2008 (partially for the TI-Nspire CAS) [email_address] http://covenantchristian.org/bird](https://image.slidesharecdn.com/rightandwrong1-100503113137-phpapp01/85/Rightand-wrong-1-1-320.jpg)
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