Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

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Put something in equation

How do you put x>1 for instance of x<1 on your caculator in the y= equation in order to graph. i know whee to find the symbols, i mostly need to know how to write it in.

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Go to [Y=], put in the variable "X", then go to the symbols and choose the one that you want, then put the number that you want

Posted on May 22, 2009

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2 Answers

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 you find the equation of a exponential graph


Usually ypu know the equation then graph it. However in doing statistics, it may appear that the curve of best for a scatter plot could be could an exponential. In that case you use the STAT application to enter the x-data in List 1 and the y-data in List 2. When you finish press the f1 key to select Graph1. You should also verify by Pressing F6:set that the graph type is set to scatter, and that List 1 contains the x-data and List 2, the y-data. After you verify that all is in order press the F1: Graph 1 key.
As the graph is displayed you will see several tabs with various regression models. Pan thr tabs to the right to get to F2:EXP. Select it.
The equation is displayed on the next screen. At the bottom of the screen you see two tabs COPY and DRAW. Press f5:Copy to copy the equation in one of the y= functions.
Press Draw and you will see the curve of best fit superposed on the scatter plot points.

Aug 23, 2011 | Casio FX-9750GPlus Calculator

2 Answers

How to use texas instruments ti-84 plus to plot inequality 4x+8y&lt;40?


First step is to find inequality in the form y<f(x), in this case y<5-0.5x. Then graphing it. See captured image


3_3_2012_6_59_43_pm.jpg

Feb 18, 2011 | Texas Instruments TI-84 Plus Silver...

1 Answer

When I enter the Regression Equation into the "y=" calculated from the Statistics that I input, it inputs half the equation into the power. Like X^(n 3) instead of X^(n) 3 which is what it is meant to be.


The regression equation can be copied automatically in a Yx variable. You need not enter it manually(?).
Example: Suppose you are performing a quadratic regression on data stored in L1 and L2.
  1. From the [Stat][

Oct 12, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

Is it possible to graph the locus of Z on the TI 84


Define z=x+iy
Substitute in the equation [x+iy -1-i|=5
|(x-1)+(y-1)i|=5
SQRT ((x-1)^2+(y-1)^2)=5
Raise to the second power (square) (x-1)^2+(y-1)^2=25
This is the equation of a circle of center (1,1) and radius 5

To graph it isolate y as +/- SQRT (25-(x-1)^2)
or use the CONICS application, which you can download from education.ti.com
You can also use the Cabri Jr Geometry application or the Draw menu then the circle(.

Apr 10, 2010 | Texas Instruments TI-83 Plus Calculator

2 Answers

I need a diagram of coil pack on 2.8 vw


For the 2.8L DOHC V-6 (AAA) & (AFP)

Firing Order:
1-5-3-6-2-4

Cylinders:
(back of engine)
1........3........5
....2.........4........6
(front of engine)

Ignition Connections:
(back)
|.2..5.|
|.4..3.|
|.6..1.|
(front)

For the 2.8L DOHC V-6 (AHA)
Firing Order:
1-4-3-6-2-5

Cylinders:
(back of engine)
3-------------6
2-------------5
1-------------4
(front of engine)

Ignition Connections:
..........(back)..
3---->|_______|<-----5
........________
2---->|_______|<-----4
........________
1---->|_______|<-----6
..........(front)

Let me know if this helped....

Mar 12, 2010 | 1999 Volkswagen Golf

1 Answer

Problem graphing..


This is my last post. It seems that I squanderd my time for zilch. There is a simple way to reset the defaults or the RAM. I stopped suggesting it because ..(what is the point?).
Press [2nd][MEM][7:Reset][1:All Ram][2:Yes] [ENTER]. Message RAM cleared is displayed on screen. Press [CLEAR] key. Screen should clear the message.
If that does not solve your problem..

Oct 06, 2009 | Texas Instruments TI-83 Plus Silver...

2 Answers

Solver not working properly


try a simple equation like x^2-1 which should come out with x = 1,-1

no sign change would indicate that the graph of the curve never crosses the x axis, if you graphed the above equation and calculated the zeros, it would come out with -1, 1 which it should, but if you put in x^2+1, the graph would never cross and therefore have no sign change from pos to neg or vice versa, the left-rt are the left and right bounds or the lower and upper bounds which was corrected in later calculators, Please let me know the outcome of graphing both of the above equations and then putting them in the solver. you could also use the quadratic equation to prove the answers if you liked, hope this helps

Mar 13, 2008 | Texas Instruments TI-83 Plus Calculator

2 Answers

Graphing


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

Jan 15, 2008 | Texas Instruments TI-84 Plus Silver...

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