Question about Texas Instruments TI-83 Plus Calculator

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Calculator I am doing my math homework and i am adding the equation y=65-2.5x in to my TI-83 plus calculator and when i hit the graph button it says invalid dim.And my window is the same as any other TI-83 plus calculator. what do i do to the window to get it to graphy?

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Well it seems that you are graphing stat points and forgot to turn them off. This can be easily fixed by going to 2nd and Stat Plot then make sure all the stat plots are turned off. This should solve your issue.

Posted on Sep 17, 2008

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My TI-83 Plus calculator won't graph anything whatsoever. Did I need new software. Please help me.


First - Are you graphing within the proper window? Hit the zoom button and change it to zoom Standard within the graphing window.

Second - Are you inputting the equation correctly? Make sure you are inputting your equations in a y= format. If possible, please reply with a screenshot of your graph screen.

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TI-83 Plus Calculator: My TI-83 reads "INVALID DIM" when I try to graph a...


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

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That should solve your problem. Post a comment to this thread if you still have trouble graphing.

If the message appears in another context, it sure would help knowing the context of the error.

May 07, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

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dont you have to chose if its quadratic or not? I'mnot 100% sure if thats right my calculator isn't working so i cant check if thats what your doing wrong ir if thats for something else

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you have one of your stat plots on that is what is messing it up. So either turn off the stat plots. Or just reset your calculator. hit 2nd then the plus (+) key then 7 then 1 then 2. Good luck

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