Question about Texas Instruments TI-84 Plus Calculator

2 Answers

Graphing multiply equations

I have the TI-84 plus silver edition and the calulator wont let me select more than one equation at a time. I have tried to go to the y equals screen and select the = sign but it just switched between the two graps
thank u
jen

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  • 3 more comments 
  • Anonymous Feb 26, 2008

    my cal wont let me graph more then one equation it wont show it at da same time.

  • dina16 Feb 26, 2008

    my cal wont show me more than one equation when i graph it, and i dont know how to fix it because it has happened before but my previous teacher fixed it and now its doing it again.

  • jparker671 Feb 28, 2008

    My TI-84 Plus will graph only one function at a time. Any suggestions?

  • Kate1337 Mar 04, 2008

    When I try to highlight another function under Y=, I cannot select the previous one. It will only allow me to graph one function at a time, same as everyone else ^
    Please Help!! Thanks.

  • Anonymous Apr 08, 2008

    I have very similar problems where my calculator wont allow me to graph two graps or equations. Own ti-84plus

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  • 11 Answers

When you go to Y=, you should get a list that says:
Y1=
Y2=
Y3=
etc. You just enter the first equation into the Y1= space then hit ENTER and it will go to Y2=. Enter the second equation there. After you have entered all of your equations, push GRAPH and they should come up in order but they will all appear.

Also, make sure your window is set appropriately so that you are able to see all of the graphs.

Lastly, when you look at your Y= screen, are there funny looking arrows before the Y=? If so, do this:

  • Press [APPS] key
  • Select Transfrm from the menu
  • Press 1:Uninstall


  • Hope one of these are helpful!!

    -Gretchen

    Posted on Mar 22, 2008

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    • Master
    • 3,037 Answers

    I've seen this many times before, when you are in the y editor, you should be able to change the graphing from line to dot, to shad, etc. instead it is set on setting which can't be changed to correct this, reset the calculator, if you have programs on it, transfer them to a different calculator, this should correct the problem, I have had it many times before, don't know why it sometimes happens but resetting the system will work, go to memory and you will find reset

    Posted on Mar 23, 2008

    • Benjamin Patri
      Benjamin Patri Mar 23, 2008

      to reset, press the 2nd key, then press the memory button which is above the enter button and you will find the reset function

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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.
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    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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