Question about Texas Instruments TI-84 Plus Calculator

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Graphing multiple equations

Hi when ever i try to graph mroe than one equation, it will not let me select more than on in the "y=" part on the side next to the "Y sub1" "Ysub2" etc, there is an arrow/triangle thing, and when i enter something in the space, it turns into an arrow with another line infront of it--it goes from a filled in ">" to a filled in ">|" on my friends calculator, it has a slash "\ " instead how to i change it back to the slash, because i believe that i my problem thank you!!

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Re: graphing multiple equations

The symbol on the left of the Ysub1,2,etc. determines what type of graph it is. move the cursor to the left of Ysub1,2,etc. and hit enter

Posted on Apr 09, 2008

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How to graphing regarding ohter axes?

Add a graph .
In Documents Toolbox, select 3: Graph/Entry Edit
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When I try to enter a simple equation and graph it, I get error 07 message instead of graph.

Error 07 Syntax
Means you made a typing error while entering the equation. Using the minus sign instead of the negation sign (change sign) (-), can produce a syntax error. Maybe you need to explicitly type the multiplication sign
y= (-) 1.5*x +3
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Jun 11, 2014 | Texas Instruments TI-86 Calculator

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The calculator doesnt graph two equation on the graph

The Transfrm application for dynamic geometry is probably active in memory. You must purge it from RAM
  1. Press APPS
  2. Scroll Up or Down (Up is faster) to find Transfm.
  3. Select it and press ENTER
  4. Press the number corresponding to the option Uninstall.
  5. Once the APP is kicked out of memory you will be able to draw multiple functions.

May 10, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

Graphing an equation

Press the Y= key to invoke the Y= editor. Enter in your equation.

Press the WINDOW key to set the window parameters.

Press the GRAPH key to have the calculator graph the equation.

For more details and options, see the "Function Graphing" chapter in the Guidebook.

Nov 11, 2009 | Calculators

1 Answer


i had the same problem .... just go to apps and go all the way down transfrm and click it then click the uninstall button !!!

Apr 01, 2009 | Texas Instruments TI-84 Plus Calculator

3 Answers

My calculator will only graph one graph at a time.

This is simple... Back up all RAM, (press second+, then 2, then 1, press enter to back up something if backed up it will have a star by it) Then clear your RAM (pull out your batteries while the calc is still on or press second+, then 7, then 1)
Hope this helps!

Oct 07, 2008 | Texas Instruments TI-84 Plus Calculator

4 Answers

How to graph linear equation in two variables

I am not quite sure what you are asking...

(1) if asking for graphing y= -2/3x+2, then press [diamond] [F1: Y=] type in .2/3x +2, see graph by [diamond][graph]

(2) if asking for graphing y= -2/3x+a, where a=3x, then first archive a=3x in Home screen by [home], type 3x [sto] a, then go back to y= menu, and type -2/3x+a in Y1

(3) if asking for graphing an equation that is dependent on 2 variables at the same time, use x-y-z axis (aka, change mode to graphing 3-D by [mode]graph [5:3D]) then enter desired equation in y= menu using Z function in terms of x and y aka z(x,y)= ...)

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2 Answers


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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6 Answers

Can't select multiple equations to graph at the same time.

On the TI-84 there is an application called Transfrm. When active it prevents you from graphing multiple functions at the same time. To fix this, select Transfrm fom the APPS menu (it was at the bottom of mine) and select 1:Uninstall. That should fix the issue

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