Question about Texas Instruments TI-84 Plus Calculator

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Graphing Hello, I am having difficulty with my TI-84 Plus Silver edition. I am unable to graph multiple functions. I can enter the functions in each Y=, but when I select the = sign to select the function, my calculator will not allow more than one function to be selected at a time. I have tried resetting the calculator and have had no success. Thank you for your help. Kate

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  • Anonymous Mar 18, 2008

    My calculator won't graph multiple equations. It just can graph one at a time. Could you please help me figure out what's wrong with it. Thank You

  • Anonymous Feb 27, 2009

    How can i reset my ti-84 plus



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Hi, you can try uninstalling the transformation app in your calculator. This does not really uninstall your application, it only prevents it from interfering with it. You should be able to graph multiple functions after that.

1) Go to APPS
2) Press Transfrm
3) Click Uninstall

Posted on Mar 11, 2008


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More information regarding this matter can be found in the Knowledge Base. The Knowledge Base can be accessed by clicking on the URL below:,23871,-1,0,&jtfm0=&etfm1=&jfn=ZG14E1108A3A0CD3ABADCD67260B59BDE0CEEA20790F80F708D8A4FDACCD82D31F792BC1B01D2F67ECAE6718104B82CC1C8F

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As soon as you start entering a function, the corresponding = sign bcomes highlighted light on dark, signifying that the function is selected to be drawn by default. If you press ENTER while cursor is on the = you are in effect canceling the selection.
That is the normal behavior of the calculator. If it does not behave this way, there must be a configuration setting that is preventing it. The most frequent source of problems for the graphing of functions comes from the satistical plots. If you are interested, you can browse the plethora of answers I have given on this very site, concerning the problem. But if you want to start graphing multiple functions (up to ten), you should reset the calculator RAM. Here is how to do it (if you do not already know):
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The first solution will allow you to watch your calculator graph two equations simultaneously rather than finishing one before graphing the next; it won't solve the problem of having the calculator unselect one equation when you select a second. To fix that problem, try the following:

In order to select additional graphs, the Transformation Graphing App will need to be uninstalled from the TI-83 Plus Family and TI-84 Plus Family. Uninstalling the App does not erase it from the calculator, it disables it from interfering with the normal graphing modes. Below are the steps to successfully uninstall the App.
  • Press [APPS] key
  • Select Transfrm from the menu
  • Press 1:Uninstall
The illustration and solution are courtesy of Jesse Phillips, who cites this page from the Texas Instruments support site

- doug garfinkel, Children's Day School

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