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Question about Texas Instruments TI-84 Plus Calculator

# Graphing When I try to use the graphing function it shows the graph and goes directly to error

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• moebsen Aug 31, 2008

When I try to use the graphing function it shows the graph and goes directly to error

• Anonymous Nov 11, 2008

Go to y= and scroll down all the way....Somebody might have typed in an equation that cannot be graphed in y8 or y9 at the very bottom.

Also try: 2nd, y=, 4, enter

• Anonymous Jan 19, 2009

when i try to graph a function, it shows the graph then goes directly to error. what should i d?

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### kakima

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• Texas Instru... Master

You're probably trying to graph a function that does not involve stat plot features and thus getting a dimension error. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

Posted on Mar 09, 2010

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## Related Questions:

### How to graphing regarding ohter axes?

Add a graph .
In Documents Toolbox, select 3: Graph/Entry Edit
Unfold the menu and select Equation (not function). Enter your equation.
For the 3D part, I am afraid you will have to read the manual.

### When I try to graph it says argument error

Your function is not correctly defined. If graph is function y=f(x), variable must be x; if graph is polar, variable must be theta, and if graph is parametric, variable must be t. This does not cover all possible cases. Check the graph type and the definition of the function.

### Syntax error for graphs

This happened to me. I left my calculator open in my bag and accidentally on the 20th function there was a multiply sign, so the calculator would directly output syntax error. Scroll down and check all your function slots are clear.

### Graphing doesnt show

Depending on the function you are drawing, it is possible that the graph is out of range of the windows dimensions. Try Zooming out to see a bigger portion of the plane. If you know where the function intercepts one of the axes, you might want to center the graph around that point.

### I have a TI-89, I enter a function and then switch to graph. It shows nothing. I tried simple functions like y=x, y=2 and nothing.. It does show the X and Y axis only.

What probably happened is the graph was turned off. to turn the graph back on, select the function (ex. y1) and then press f4. This should turn the graph back on and you should see the function.
Hope this helps.

### When graphing the function (x+6)/(x-7) I'm getting a vertical line showing up on the graph connecting the two curves that shouldn't be there. do I have something turned on that shouldn't be?

The vertical line is called an asymptote, it is not connecting the graph, it means that the function goes to infinity as the function nears the line. In this case the graph goes to infinity and negative infinity as the x nears 7. This is because the function becomes undefined at x = 7 , plug 7 into x and we get 1/0, dividing by zero is undefined. Thus, the calculator puts the vertical asymptote in the graph to symbolize the action of the function nearing infinity.

### ERR: INVALID DIM (That's the error message I receive every time I try to graph an equation)

Hello,
[2nd][MEM][7:Reset][1:All ram][2:Reset] [ENTER]. Screen shows RAM cleared. Clear the screen and use [Y=] to enter the functions you want to graph.
Hope it helps.

### When i try to graph it says error and wont let me graph

Hello,
Reset calculator to defaults
[2nd][MEM][7][2][2] Defaults set.

[Y=] on line Y1= enter your function then press [GRAPH]
You can draw several graphs on the same screen.
If nothing shows (except the axes) use [ZOOM] to Zoom in or zoom out or use [WINDOW] to change the values of Xmin, Xmax, Ymin, Ymax.

Hope it helps.

Hope it helps

### Graph and trace buttons don't work

If either error occurs when trying to graph a function (not a STAT PLOT), the error can be corrected by turning off the STAT PLOTS. The following steps will turn the STAT PLOTS off, allowing the graph of the function to be displayed.â€¢ Press [2nd] [Y=] to access the STAT PLOTS menu.
â€¢ Select 4: PlotsOff.
â€¢ Press [ENTER].
â€¢ Try graphing a function like y = x^4-3x^3+6x-1

### Error in graph

...with this process you will erase everything....

press "2nd" function and then "Mem"
then press "F1" and choose "3"
Press ok, and then wait, THAT'S IT!

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