TI-83 & TI-84 Graphing Calculators

you idiot you can't

There are infinite solutions, since you have 2 unknowns and 1 equation.

x+4y=12

4y=12-x

y=3-0.25x

or

x=12-4y

If you choose an y or an x, the other is defined.

To convert kilometers to miles on a TI-84 calculator, you can use the conversion factor: 1 kilometer is approximately equal to 0.62137119 miles. You can multiply the number of kilometers by this conversion factor to get the equivalent distance in miles. For example, to convert 10 kilometers to miles, you would do 10 km * 0.62137119 miles/km = 6.2137119 miles.

This probably means that a stat plot is turned on and that the lists being used by the stat plot to not have the same number of values in them. To fix the problem, press Y= and deselect any highlighted stat plots and the top.

If you are wanting to view the stat plot, edit the lists used by the stat plot so that they have the same number of values. (These lists are most likely L1 and L2. Press Stat and then Edit to edit them.)

There are online graphing calculators. However, as of writing, there is no emulated TI83 that runs within your browser. On the other hand, if you have a Ti83, it is possible to copy its ROM to run an emulated TI83 on your desktop via one of many emulators.

Press MATH and select PRB at the top. The second option, nPr, is permutation.

Example: To find P(8,3) type:

8 nPr 3

To solve a matrix on a TI-84 calculator, first, enter the matrix by pressing the MATRIX button, then select EDIT to define your matrix dimensions and input the values. After entering the matrix, exit the edit mode, then access the MATRIX menu again to select your matrix for operations like finding the inverse, determinant, or performing row operations. For example, to find the inverse, select the matrix, then press x^-1 and hit ENTER. The calculator will display the result.

Assuming you're talking about the Texas Instruments series of calculators - it has a USB connector - you just need the relevant cable.

You can remove the batteries and test their voltages individually. Looking at the weakest one, 1.50 or more volts is good and will have a long life. 1.0 volts or less is almost dead. Sometimes you can tell the battery is weak by the contrast on the screen, but that's a matter of experience with that calculator.

Use the abs( function. To get to it, press MATH, scroll over to NUM on the top, and choose abs(. Put what is in between the absolute value bars in parenthesis.

For example |X+3| would be abs(x+3).

Another example: 3|X-2| + 5 would be 3abs(X-2)+5.

Press the "2ND" key, then DRAW (also the PRGM key), and select "1:ClrDraw."

Yes calculator TI-84 is permitted unless it's not othe TI model.

Yes, if have a programmable TI calculator, such as the TI-84, and most of the higher ones from that point.

If you do want to text message, then you need a calculator-to-calculator cable, and a program on both that allows texting. Of course, because the calculator cable is only about a foot long, it would be slightly redundant to be texting unless instead of talking. For an examples of such a program, try this page: http://www.ticalc.org/pub/83plus/basic/programs/linking/

However, you can't actually text wirelessly.

Either press the carat button followed by a 3 or go to the math function and select cubed.

I believe that that isn't possible unless you have it ported to ti84 or you know how to. the file format is different, and the game is built for a separate calc.

A simple way to reset your calculator to default values would be to take out the batteries. Taking out the AAA batteries that you usually change will have no effect on the settings. If you take off the battery cover, above the AAA's there is a little silver screw. If you unscrew this little screw there is a very small battery under it. This little battery saves your settings wile you change the AAA batteries. If you take out this little battery as well as the AAAs your calculator should reset it's self to default values.

First, put the data into lists 1 and 2. (Get to the lists by pressing Stat and then Edit.) Then press Stat, choose Calc at the top, and choose LinReg(ax+b). Press ENTER and it will display the regression equation, giving the values for a and b.

(If you want r and r2 values but don't see them, press 2ND Catalog (above zero) and choose DiagnosticOn. Press ENTER and then calculate the liner regression again.)

If you data is in lists other that 1 and 2, you can specify that by doing something like this:

LinReg(ax+b) L3, L4

With most of the TI calculators, you have to press the "2nd" button (usually in the top left corner, by the screen) and then the "ON/CLEAR" button (usually in the top right corner, by the screen).

Variables on the TI-84 Plus Silver hold numbers; there are like memory. Here is an example of how to wet the variable C to equal 24:

Enter the number 24, then press the STO> key. Then press ALPHA C (above PRGM). The calculator should show:

24->C

Press ENTER and the variable C will be set to 24. You can check this by pressing ALPHA C and then ENTER.

You don't, sorry. :) However, if you have a SilverLink cable, you can connect your calculator to your computer, and either save programs and files onto your computer, or load them back onto your calculator.

Create the following program (hit the PRGM button, then click new & give it a name):

: ClrHome

: Prompt A

: Prompt B

: Prompt C

:(B2-(4AC)) (STO->) X

:If X < 0

:DISP "NO REAL ANSWER"

: (-B+squareroot(X))/(2A) (STO->) Y

: (-B-squareroot(X))/(2A) (STO->) X

:

: Disp Y,X

Note: The (STO->) symbol means press the store key (above the ON button for the TI-84 plus). Also make sure to follow the placing of the parentheses exactly because the answers will be incorrect if you don't do it right.

THAT EXCLUDES THE PARENTHESES OF STO-> ! DO NOT PLUG IN THE PARENTHESES FOR STO-> !

Enjoy never having to deal with that formula ever again!

tastychips

I am not 100% sure, but when you plug it in to your cable, it might charge. I am sorry if this does not work. Its just a guess