Question about Texas Instruments TI-89 Calculator
Posted by Anonymous on
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: I need to find decreasing
While your TI-83 plus cannot explicitly find increasing or decreasing intervals, it can find the minimum(s) and maximum(s) of a function.
Press the "Y=" button.
Enter the equation in "y=" format into the first open equation.
Press the "GRAPH" key.
If the maximum and minimum of the curve are not shown in the window it has, press ZOOM->0.
Press 2ND->CALC (under the "TRACE" key).
Press 3 if you are trying to find a min, 4 if you're trying to find a max.
It will ask for bounds. Enter a left and right bound by looking at the graph itself and choosing a left bound that is clearly to the left of the min/max, and a right bound clearly to the right of the min/max.
Then it will ask you to guess a value. You can skip this step by pressing ENTER instead of entering a value.
It will calculate the value. To find increasing/decreasing intervals, just know that every interval with a minimum as the left bound and a maximum as the right bound is increasing, and vice versa.
Posted on Mar 05, 2011
Tips for a great answer:
Mar 31, 2014 | Texas Instruments TI-89 Calculator
Feb 25, 2011 | Texas Instruments TI-83 Plus Calculator
Feb 23, 2011 | Texas Instruments TI-89 Calculator
Dec 08, 2010 | Texas Instruments TI-89 Calculator
Oct 20, 2010 | Texas Instruments TI-89 Calculator
Oct 31, 2009 | Texas Instruments TI-89 Calculator
Jul 04, 2009 | Texas Instruments TI-83 Plus Calculator
Jun 30, 2009 | Texas Instruments TI-89 Calculator
May 16, 2008 | Texas Instruments TI-89 Calculator
224 people viewed this question
Usually answered in minutes!
Level 3 Expert
Level 3 Expert
Level 2 Expert