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Anonymous Posted on Oct 14, 2009

How can I graph two equations at once? My equal sign will not stay highlighted for two equations. It just graphs one at a time

1 Answer

k24674

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  • Texas Instru... Master 8,093 Answers
  • Posted on Oct 14, 2009
k24674
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Hello,
Once you enter an equation the corresponding equal sign is highlighted by default. Before you draw the 2 graphs, move the cursor to Y3 or Y4 and verify that the = signs for Y1 and Y2 remain highlighted. If one is not highlighted, move the cursor on it and press ENTER.
If you still have problem, press [2nd][STATPLOTS][4: PlotsOff] [ENTER]
Command PlotsOff echoes on main screen. Press [ENTER], screen displays Done.
If all else fails, just reset the RAM by pressing [2nd][MEM][7:Reset][1:All RAM][2:Reset], press [CLEAR] to clear the message.
You shouild make it a habit to clear the RAM every time you start a new type of problem.

Hope it helps.

Testimonial: "Clearing the RAM really helped thanks! Now I can show my students what to do. "

  • k24674 Dec 29, 2009

    This behavior is characteristic of the Transform application for dynamic graphing. It draws a family of curves for different values of a parameter.
    When it is used it takes over the graphing from the native OS. Since it is designed to draw many similar curves, only one function can be activated in the Y= editor screen. The change of the value of a parameter will generate several curves and no place is left for the other Y= function.
    To recover the normal graphing, Transform must be unloaded from memory.
    To do so


        Press the Apps button.

        Scroll down to select Transform

        Select it and press ENTER.

        A screen with title Transform Running appears.

        You will be prompted to continue or uninstall the APP (may be QUIT).

        Select the option to Uninstall (It will not delete it, just unload it from memory)


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Related Questions:

0helpful
1answer

I cannot get the calculator to graph more than one line. I've tried highlighting teh equals sign and hitting entor to make it dark but it will only highlight one equation at a time.

One of the applications Inequalz or Transfrm is still loaded in memory and it controls the graphing capabilities of the calculator. To restore control to the naative OS, proceed as follows.
Press the APPS button.
Scroll dowwn or Up to find Inequalz.
Select it and press ENTER.
A message is displayed sayin Inequal Running.
Select 2:Quit Inequal.

If the message you get is
APP CONFICT.
or Conflicting Apps
Reset the RAM to kick the applications out of memory
0helpful
1answer

Will only display one graph at a time

One of the applications Inequalz or Transfrm is still loaded in memory and it controls the graphing capabilities of the calculator. To restore control to the naative OS, proceed as follows.
Press the APPS button.
Scroll dowwn or Up to find Inequalz.
Select it and press ENTER.
A message is displayed sayin Inequal Running.
Select 2:Quit Inequal.

If the message you get is
APP CONFICT.
or Conflicting Apps
Reset the RAM to kick the applications out of memory
9helpful
1answer

My ti-84 is only graphing one linear equation in the y equal when i put two equations in it only show one

The following should help you draw several graphs.
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.
2helpful
1answer

I use the Y= key and type in my two equations, then i hit the graph button and it doesn't show up, why won't it graph for me?

Hello,
Once you enter an equation the corresponding equal sign is highlighted by default. Before you draw the 2 graphs, move the cursor to Y3 or Y4 and verify that the = signs for Y1 and Y2 remain highlighted. If one is not highlighted, move the cursor on it and press ENTER.
If you still have problem, press [2nd][STATPLOTS][4: PlotsOff] [ENTER]
Command PlotsOff echoes on main screen. Press [ENTER], screen displays Done.
If all else fails, just reset the RAM by pressing [2nd][MEM][7:Reset][1:All RAM][2:Reset], press [CLEAR] to clear the message.
You shouild make it a habit to clear the RAM every time you start a new type of problem.

Hope it helps.
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We are graphing more than one line at a time. One

To return your calculator's graphing equation to "Y=", press "MODE" from the home screen, then ensure that the option on the fourth row is set to "Func". Next, to show a hidden graph, access the Y= list, then press the left arrow key until the cursor is over the "=". Press "ENTER" to toggle visibility of that line.
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1answer

TI 84 plus calculator refuses to graph more than one function

Hello,
Please, read the following, even if you already know some of its contents.
  1. Once you enter an equation, the corresponding equal sign is highlighted by default.
  2. Before you draw the 2 graphs, move the cursor to Y3 or Y4 and verify that the = signs for Y1 and Y2 remain highlighted.
  3. If one is not highlighted, move the cursor on it and press ENTER.
  4. If you still have problem, press [2nd][STATPLOTS][4: PlotsOff] [ENTER].
  5. Command PlotsOff echoes on main screen.
  6. Press [ENTER], screen displays Done.
  7. Restart the graphing procedure.
  8. If all else fails, just reset the RAM by pressing [2nd][MEM][7:Reset][1:All RAM][2:Reset], press [CLEAR] to clear the message.
You should make it a habit to clear the RAM every time you start a new type of problem.

Hope it helps.
1helpful
1answer

I cant highlight both equations in Y= to graph

Hello,

First thing to do before any new type of problem
1. Turn StatPlots OFF : press [2nd][STATPLOT][4:PlotsOff] [ENTER]

Second thing: Clear the statistical lists
2. Press [2nd][0][PGRM] DownArrow to point to ClrAllLists.
3.Press [ENTER][ENTER]

Third thing : Configure the graph type to be FUNCTION graph
4. Press [MODE]. If FUNC (on fourth line) is highlighted. Press [Y=] and start entering the functions.
5. If FUNC is not highlighted, use Down arrow till 4th line, highlight FUNC and press [ENTER]. Press Press [Y=] and start entering the functions.

Fourth thing: Enter function and select them for graphing
1. As you start entering the function Y1=, notice that the = sign becomes highlighted. Press [ENTER] when Y1 is typed in. Make sure the = sign for Y1 remains highlighted as cursor moves to Y2=.
2. Keep entering the functions and verifying that their = signs remain highlighted as cursor moves to another equation.
3. When finished press [ENTER]
4. Look at the graph style for each function: it is a bit of line to the left of each Y. Here is a picture of all the 7 styles.

5d53e23.jpg

To set a graph style, highlight the style to the left of the Y, and press [ENTER]. Each time you press [ENTER] you see a new style, in the order shown on picture.
Avoid the style of Y6, it is bubble, and as such will burst and disappear once graph is finished. Avoid also the triangular ones (for Y3 and Y4) they will shade areas of the graph, and may hide other functions.

Fifth thing: Graph Functions.
1. You can press [GRAPH] to see your graphs.
2. If one curve is missing (and you have not set its style to be rhe bubble), it may be due to the Window dimensions.

Sixth Thing: Set Window dimensions and Zoom.
1. Press [ZOOM][6:ZStandard] to use standard window dimensions.
2. If curve still missing, Press [ZOOM][3:Zoom Out] to zoom out so that you may be able to see a bigger range for the functions.
3. If necessary press [WINDOW] and set the Xmin, Xmax, Ymin,Ymax to values of your own.

d44f2dd.jpg

Dimensions must obey the conditions: Xmin < Xmax, and Ymin < Ymax.

Hope that helps.
0helpful
1answer

Graphing function will only graph one equation at a time. Why is this and how can I fix it? Thanks!

Hello,
  1. Once you enter an equation, the corresponding equal sign is highlighted by default.
  2. Before you draw the 2 graphs, move the cursor to Y3 or Y4 and verify that the = signs for Y1 and Y2 remain highlighted.
  3. If one is not highlighted, move the cursor on it and press ENTER.
  4. If you still have problem, press [2nd][STATPLOTS][4: PlotsOff] [ENTER].
  5. Command PlotsOff echoes on main screen.
  6. Press [ENTER], screen displays Done.
  7. Restart the graphing procedure.
  8. If all else fails, just reset the RAM by pressing [2nd][MEM][7:Reset][1:All RAM][2:Reset], press [CLEAR] to clear the message.
You shouild make it a habit to clear the RAM every time you start a new type of problem.

Hope it helps.
6helpful
1answer

My graphing calculator only allows me to graph one line at a time

Hello,
Once you enter an equation the corresponding equal sign is highlighted by default. Before you draw the 2 graphs, move the cursor to Y3 or Y4 and verify that the = signs for Y1 and Y2 remain highlighted. If one is not highlighted, move the cursor on it and press ENTER.

Once all the = signs for all the functions ypu want to draw are highlighted permanently, press the [GRAPH] key.
Depending on the functions ane the window dimensions certain graphs may not show up and one can Zoom out or adjust the window.

If you still have problem, press [2nd][STATPLOTS][4: PlotsOff] [ENTER]
Command PlotsOff echoes on main screen. Press [ENTER], screen displays Done.

If all else fails, just reset the RAM by pressing [2nd][MEM][7:Reset][1:All RAM][2:Reset], press [CLEAR] to clear the message.
You shouild make it a habit to clear the RAM every time you start a new type of problem.

Hope it helps.
3helpful
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Graphing problem

YES!  I found out how, but you have to reset everything on your calculator unfortunately clearing out all of your applications and memory.  Here is what you do:
Press 2ND Press + Press 7 Press the right key twice Press Enter Press 2
This looks like it won't do anything but it DOES I'm so happy now!
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