Question about Texas Instruments TI-84 Plus Calculator

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Graphing multiple lines

Calculator will only graph one line at a time

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  • Anonymous Nov 14, 2008

    only graphs one line at a time.

  • ncheels0215 Jan 12, 2009

    i am graphing two lines and only one is showing up

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1 Answer

You should go to:

  • click on "APPS" button.
  • Then scroll down to "Transfrm" (the last one on the list, I think.)
  • Then "Uninstall".
It should fix it. Hope it helps.

Posted on Oct 24, 2008

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2 Answers

How do I graph x<-3 on the calculator?


First you must use a graphing calculator.
Most graphing calculators graph functions, i.e. relations of the form y=f(x).
Some graphing calculators are able to graph equations (not necessarily functions). On one of these calculators your draw the vertical line x=-3, then you shade to the left of the point x=-3. That gives you the real line from infinity up to but not including x=-3.
Generally, people do not need calculators to find the solutions to inequalities in just one variable.

e7963f8a-13fa-417a-857b-ca91636bf86b.jpg

Jan 06, 2016 | Office Equipment & Supplies

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I am trying to graph a least-squares line on my TI-84 Plus. I have the numbers correctly plugged into my Stat Edit tables, and I am able to access my linear equation, and the first time I entered my graph...


After you enter the data draw the SCATTER plot first.
When you perform the (linear) regression analysis LineReg, save the regression equation to a function, for example Y1
The syntax is
LineReg L1, L2, Y1 ENTER


From the Stat>CALC menu press LineReg
The command echoes on command line
Press [2nd][1] to enter the L1 list on command line
Press [,] to separate
Press [2nd] [2] to enter L2 on the command line
Press [,] the comma again
Press [VARS][>][Y-Vars][1~Function][1:Y1] [ENTER]
Press [GRAPH] to have the regression line equation drawn
on the same screen as the Scatter Plot you drew before.

Sep 13, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

How do I get it to graph something like y<2x


Press the Y= key. In the Y1= line, enter 2x+1 for the expression. Repeatedly press the left-arrow key until the cursor blinks over the down-sloping diagonal line at the very left of that line. Press ENTER three times to change the graph mode to a triangle below the diagonal. Press the GRAPH key to see the graph.

If you still have trouble, reply to this post and describe what you're getting.

Feb 06, 2011 | Texas Instruments TI-83 Plus Calculator

2 Answers

I am trying to help one of my students with their calculator. When graphing multiple equations on her TI-84 plus calculator only one graph is appearing in the window. There is a symbol to the left of the...


The Transfrm application has been executed previously. It remains in RAM and takes over the graphing duties of the native OS. You must Uninstall Transfrm (that does not mean delete it, just unload it from memory).
To do so,
  1. press the [APPS] button.
  2. Use arrow Up or Down (Up is faster) to reach Transfm.
  3. Select it and press [ENTER].
  4. In the new screen, select the number to the left of the Uninstall option.
  5. Go to draw your graphs. You will be able to draw up to 10 graphs.

Feb 04, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

My calculator is only graphing one function at a time, how do i graph multiple funtions. i try highlighting both funtions but when i select one then the other one, only one stays highlighted


Here it is.
When you enter a function you should press [ENTER] to validate. At the same time, the cursor moves to the next line. Verify that the = sign on the equation already entered is still highlighted.
If for some reason the = sign of an equation is no longer highlighted, use arrow keys to move cursor on the = sign and press [ENTER].

If only one = sign remains highlighted and all others are not, then in all probability the application Transfrm has been executed before and is still lingering in RAM. When in RAM, it takes over the graphing capabilities of the native OS. This prevents you from drawing more than one graph.You must unload it from memory.
  1. Press the [APPS] key.
  2. Scroll down to the line that shows Transfrm.
  3. Highlight it and press [ENTER].
  4. In following screen you are invited to Uninstall or continue.
  5. Press the number to the left of Uninstall. Validate if need be.
  6. Return to the Y= editor to type in functions to graph.

Sep 24, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

How do I set the calculator so that I can view several graphs at the same time?


It depends on what you mean by "view several graphs at the same time".
If the graphs use the same/single screen then all you have to do is enter each equation on Yx= line in [Y=] editor. Make sure that each [=] sign after the Yx is highlighted.

If you want graphs drawn side by side on multiple portions of screen, I am afraid that is not possible. All you can do is split the screen horizontally (Horiz in MODE configuration screen) or G-T (graph and Table MODE configuration screen). The Gt-T feature allow you to draw A graph and ITS table) side by side.

Sep 10, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

TI-84 silver: Black arrow instead of line in function mode


Hello,
I have answered this question multiple times. I have no idea why you calculator refuses to allow you to choose more graph styles. Maybe you should reset it by clearing the RAM.
Concerning the connected asymptotes.
In truth your function has one aymptote namely the straight line x=2 but your graph has two asymptotic branches, one tends towards -infinity, the other toward + infinity. That they seem connected is an illusion due to the finite resolution of the screen. This is made worse if you select a connected graph instead of a dotted one. I am enclosing a screen capture of the graph for the same function, drawn on a calculator with better resolution.

ea9382c.jpg

This clarification being given, it remains that you still have a problem since you cannot choose other styles. Do try to reset the RAM, and choose dotted graphs. If that does not work, maybe you should update the OS or reinstall it from education.ti.com.
I hope it solves your problem. If it does not, do not blame me, and remember that I tried my best.

Oct 16, 2009 | Texas Instruments TI-84 Plus Silver...

1 Answer

I can't graph more than one equation in the y= area of my Ti 84+


Hello,
The marking that so puzzle you define the type of line (or dots) to represent the graphs. Enter as many functions as there are Y variables.
After entering a function press [ENTER] to jump to the next one.
When finished entering all functions press GRAPH. If you want graphs drawn one after the other, in MODE highlight Sequential (6th line) and press ENTER. If you want graphs drawn simultaneously, in MODE (6th line) highlight Simul and press ENTER. Press 2ND QUIT to return to previous screen . Execute graph again.
Hope itr helps.

Sep 23, 2009 | Texas Instruments TI-83 Plus Silver...

1 Answer

The calculator is only graphing a half circle when it should be a full circle, specifically not in the negative y-values of the plane.


A circle is not a function and cannot be graphed in the regular y=screen. You can graph a circle in parametric mode.

To graph a circle in the regular y= screen, you have to graph it in 2 lines on the y= screen. I assume you've solved for y and gotten a square root equation. Remember a square root can be positive or negative. In line 1 of y= screen graph what you've been graphing and then graph the same equation in line 2 but with a negative in front of the equation. You'll get something that looks like an oval since the calculator screen is rectanglular. To make it look more circular (both parts aren't going to connect), press zoom and then select #5 (square).

Aug 01, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

TI 84 will not graph multiple functions simultaneously


Turn off transformers. Go to apps and go all the way down until you reach transformers then hit enter. Then a menu should appear and hit uninstall that should fix it.

Sep 09, 2008 | Texas Instruments TI-84 Plus Calculator

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