Question about Texas Instruments TI-89 Calculator

# Graphs I want to draw a graph but with the points of the function, I don't want a line.

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• Texas Instru... Master

From the Y= editor:

1. Move the cursor to highlight the applicable function.

2. Select the Style menu and press 2nd F6.

3. Select the applicable style.

In this case you want Dot. The other choices are Line, Square, Thick, Animate, Path, Above, and Below.

For full details look in the section "Basic Function Graphing" in the TI-89 Guidebook.

Posted on Jan 22, 2010

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Posted on Jan 02, 2017

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## Related Questions:

### How do I graph x<-3 on the calculator?

First you must use a graphing calculator.
Most graphing calculators graph functions, i.e. relations of the form y=f(x).
Some graphing calculators are able to graph equations (not necessarily functions). On one of these calculators your draw the vertical line x=-3, then you shade to the left of the point x=-3. That gives you the real line from infinity up to but not including x=-3.
Generally, people do not need calculators to find the solutions to inequalities in just one variable.

Jan 06, 2016 | Office Equipment & Supplies

### How do I graph sinx on my Casio fx-9750GII calculator?

Turn calculator ON
If you see no icons, press Menu
Press 3 (Graph) draw your function. (more on that later).
If the first line of the display show Graph Func : Y= you should be able to draw your function.
If it says anything else, press F3 TYPE to select the graph type and select functional by pressing F1 key Y=.
After the graph type is set to Y=, type the second member of your function y= f(x) on the first line. Make sure the = sign after Y1= remains highlighted after you move cursor. Otherwise select the function by pressing F1:SEL. Press F6 Draw.
Be careful with trigonometric functions. If angle unit is radian, set window Zoom to standard. If angle unit is degree, you must open the Window utility and set Xmin=-190, Xmax = 190 to see at least a period.

Feb 21, 2013 | Casio CE CASI FX-9750GII-L-IH GRAPHING...

### How do i graph?

The fact that you are asking how to graph makes believe that you solved the problem about 'invalid dimension' . I am glad that worked for you.

This

1. Prepare calculator for graphing
Turn StatPlotsOff to avoid errors:

Press [2nd][STATPLOT][4:PlotsOff][ENTER].

2. Setup Graph type
• Press [MODE] key.
• In Mode set up screen, make set the angle unit (if you are drawing trigonometric functions)..
• Use the arrows to move cursor to 3rd line to highlight degree or radian and press [ENTER]. The important thing is that you be aware of the unit so that you do not get unexpected results.
• On same screen, verify that Func is highlighted. If you are drawing PARametric plots, POLar plots or SEQuence plots, you highlight the relevant item in the list
• If it is not, use arrow to highlight Func and press [ENTER] to validate.
• Do not worry if you do not have exactly the same screen as in the screen picture (We may have different OS Versions)

3. Entering the functions to draw (assuming you want to draw y= functions)
• Press [Y=] to enter function editor.
• Type in a function
• Press [ENTER] at the end of each function.
• Before pressing [GRAPH], make sure that all the = signs that define the functions to be graphed are highlighted white on black. If one is not highlighted, use arrow to move cursor on the sign and press [ENTER].
• In the screen capture 4 functions are slated to be drawn.

4. Selecting the Graph Style (You may ignore this now, because it is unimportant for just one graph)
• Select the graph style: The small piece of line to the left of a Y that defines a function is the style.
• Move cursor on it and press [ENTER] .
• Each [ENTER] (on same line) selects another style.
• On the next screen you have all the styles available on the calculator.
• Do not select the bubble on line 6: It is for animations. It will not leave a trace at the end of the plot.

5. Drawing the Graphs
• Press [GRAPH] to see the graphs.
• If one of them is missing, verify that its = is still highlighted, then use the [WINDOW] to set the Window dimensions,
• Here are the dimensions of the standard window

6. ZOOMING
You can also press [ZOOM] to adjust.

The selection 6:ZStandard sets the dimensions as on the screen Titled Window (above).

Sep 08, 2010 | Texas Instruments TI-84 Plus Silver...

### How can i draw graph.

1. Prepare calculator for graphing
Turn StatPlotsOff to avoid errors:

Press [2nd][STATPLOT][4:PlotsOff][ENTER].

2. Setup Graph type
• Press [MODE] key.
• In Mode set up screen, make set the angle unit (if you are drawing trigonometric functions)..
• Use the arrows to move cursor to 3rd line to highlight degree or radian and press [ENTER]. The important thing is that you be aware of the unit so that you do not get unexpected results.
• On same screen, verify that Func is highlighted. If you are drawing PARametric plots, POLar plots or SEQuence plots, you highlight the relevant item in the list
• If it is not, use arrow to highlight Func and press [ENTER] to validate.
• Do not worry if you do not have exactly the same screen as in the screen picture (We may have different OS Versions)

3. Entering the functions to draw (assuming you want to draw y= functions)
• Press [Y=] to enter function editor.
• Type in a function
• Press [ENTER] at the end of each function.
• Before pressing [GRAPH], make sure that all the = signs that define the functions to be graphed are highlighted white on black. If one is not highlighted, use arrow to move cursor on the sign and press [ENTER].
• In the screen capture 4 functions are slated to be drawn.

4. Selecting the Graph Style (You may ignore this now, because it is unimportant for just one graph)
• Select the graph style: The small piece of line to the left of a Y that defines a function is the style.
• Move cursor on it and press [ENTER] .
• Each [ENTER] (on same line) selects another style.
• On the next screen you have all the styles available on the calculator.
• Do not select the bubble on line 6: It is for animations. It will not leave a trace at the end of the plot.

5. Drawing the Graphs
• Press [GRAPH] to see the graphs.
• If one of them is missing, verify that its = is still highlighted, then use the [WINDOW] to set the Window dimensions,
• Here are the dimensions of the standard window

6. ZOOMING
You can also press [ZOOM] to adjust.

The selection 6:ZStandard sets the dimensions as on the screen Titled Window (above).

Sep 03, 2010 | Texas Instruments TI-83 Plus Calculator

### Calculator is drawing vertical asymtotes.

There is no vertical (or otherwise) asymptote feature on a TI84PLUS. It seems to you that the calculator is drawing the asymptote. However when you plot a CONNECTED Graph a line is drawn from one point to the next: The last point on one side of the asymptote is thus connected to the first point on the other side, effectively mimicking the drawing of the asymptote.
To get rid of this spurious effect, draw dotted graphs, but you will see fewer points, because the points are drawn at constant intervals in X. This is set by the Xres variable, in the Window configuration screen.

Here is a function that will "show" you a vertical asymptote on the TI84PLus, when graph is drawn connected, but on a calculator with a higher resolution, you see none. A calculator cannot handle infinity. You can with the help of your mind's sight, so to speak, see the asymptote on the graph.

Aug 20, 2010 | Texas Instruments TI-84 Plus Silver...

### How to use graphing calculator?

The casio FX-300Ms calculator cannot do graphs. To tell you how to use a graphing calculator TO DRAW GRAPHS we need to know the exact brand and model number of the calculator.

1. Most graphing calculators basically function the same way.
2. You select the graph type (function, polar,parametric, sequence, 3D, wire mesh, slope field, etc.)
3. You enter the algebraic form of the function you want to draw.
4. You press a button or menu to GRAPH
5. The graph is drawn.
6. If you want to see a particular part of the graph, you use a ZOOM function, or you enter values for the WINDOW dimensions.
7. Most graphing calculators have a TRACE function that allow you to follow the curve you have drawn to read off values of coordinate points.
8. You can also use the calculator to find zeros roots) of functions, calculate derivatives at some chosen points or calculate the area "under the curve", find the minimum and maximum of a function.
In addition to its graphing capabilities, a graphing calculator can be used as a scientific calculator. Sometimes it can also do statistical and financial calculations, matrices, list manipulations, operations on complex numbers, text editing,, creating programs etc.

Aug 13, 2010 | Casio FX-300MS Calculator

### I can't graph on ,y ti 84...

Prepare calculator to graph

Turn StatPlotsOff to avoid errors:
Press [2nd][STATPLOT][4:PlotsOff][ENTER].

Setup Graph type
• Press [MODE] key.
• In Mode set up screen, make set the angle unit (if you are drawing trigonometric functions)..
• Use the arrows to move cursor to 3rd line to highlight degree or radian and press [ENTER]. The important thing is that you be aware of the unit so that you do not get unexpected results.
• On same screen, verify that Func is highlighted. If you are drawing PARametric plots, POLar plots or SEQuence plots, you highlight the relevant item in the list
• If it is not, use arrow to highlight Func and press [ENTER] to validate.
• Do not worry if you do not have exactly the same screen as in the screen picture (We may have different OS Versions)

Entering the functions to draw (assuming you want to draw y= functions)
• Press [Y=] to enter function editor.
• Type in a function
• Press [ENTER] at the end of each function.
• Before pressing [GRAPH], make sure that all the = signs that define the functions to be graphed are highlighted white on black. If one is not highlighted, use arrow to move cursor on the sign and press [ENTER].
• In the screen capture 4 functions are slated to be drawn.

Selecting the Graph Style (You may ignore this now, because it is unimportant for just one graph)
• Select the graph style: The small piece of line to the left of a Y that defines a function is the style.
• Move cursor on it and press [ENTER] .
• Each [ENTER] (on same line) selects another style.
• On the next screen you have all the styles available on the calculator.
• Do not select the bubble on line 6: It is for animations. It will not leave a trace at the end of the plot.

Drawing the Graphs
• Press [GRAPH] to see the graphs.
• If one of them is missing, verify that its = is still highlighted, then use the [WINDOW] to set the Window dimensions,
• Here are the dimensions of the standard window

ZOOMING
You can also press [ZOOM] to adjust.

The selection 6:ZStandard sets the dimensions as on the screen Titled Window (above).

May 19, 2010 | Texas Instruments TI-83 Plus Silver...

### Graph drawing problem

Read the first part of the answer to deactivate the statistical plots. No need to read the rest if you know how to do graphs.

Prepare calculator to graph

Turn StatPlotsOff to avoid errors:
Press [2nd][STATPLOT][4:PlotsOff][ENTER].

Setup Graph type
• Press [MODE] key.
• In Mode set up screen, make set the angle unit (if you are drawing trigonometric functions)..
• Use the arrows to move cursor to 3rd line to highlight degree or radian and press [ENTER]. The important thing is that you be aware of the unit so that you do not get unexpected results.
• On same screen, verify that Func is highlighted. If you are drawing PARametric plots, POLar plots or SEQuence plots, you highlight the relevant item in the list
• If it is not, use arrow to highlight Func and press [ENTER] to validate.
• Do not worry if you do not have exactly the same screen as in the screen picture (We may have different OS Versions)

Entering the functions to draw (assuming you want to draw y= functions)
• Press [Y=] to enter function editor.
• Type in a function
• Press [ENTER] at the end of each function.
• Before pressing [GRAPH], make sure that all the = signs that define the functions to be graphed are highlighted white on black. If one is not highlighted, use arrow to move cursor on the sign and press [ENTER].
• In the screen capture 4 functions are slated to be drawn.

Selecting the Graph Style (You may ignore this now, because it is unimportant for just one graph)
• Select the graph style: The small piece of line to the left of a Y that defines a function is the style.
• Move cursor on it and press [ENTER] .
• Each [ENTER] (on same line) selects another style.
• On the next screen you have all the styles available on the calculator.
• Do not select the bubble on line 6: It is for animations. It will not leave a trace at the end of the plot.

Drawing the Graphs
• Press [GRAPH] to see the graphs.
• If one of them is missing, verify that its = is still highlighted, then use the [WINDOW] to set the Window dimensions,
• Here are the dimensions of the standard window

ZOOMING
You can also press [ZOOM] to adjust.

The selection 6:ZStandard sets the dimensions as on the screen Titled Window (above).

Apr 25, 2010 | Texas Instruments TI-84 Plus Silver...

### Cannot graph

Prepare calculator to graph

Turn StatPlotsOff to avoid errors:
Press [2nd][STATPLOT][4:PlotsOff][ENTER].

Setup Graph type
• Press [MODE] key.
• In Mode set up screen, make set the angle unit (if you are drawing trigonometric functions)..
• Use the arrows to move cursor to 3rd line to highlight degree or radian and press [ENTER]. The important thing is that you be aware of the unit so that you do not get unexpected results.
• On same screen, verify that Func is highlighted. If you are drawing PARametric plots, POLar plots or SEQuence plots, you highlight the relevant item in the list
• If it is not, use arrow to highlight Func and press [ENTER] to validate.
• Do not worry if you do not have exactly the same screen as in the screen picture (We may have different OS Versions)

Entering the functions to draw (assuming you want to draw y= functions)
• Press [Y=] to enter function editor.
• Type in a function
• Press [ENTER] at the end of each function.
• Before pressing [GRAPH], make sure that all the = signs that define the functions to be graphed are highlighted white on black. If one is not highlighted, use arrow to move cursor on the sign and press [ENTER].
• In the screen capture 4 functions are slated to be drawn.

Selecting the Graph Style (You may ignore this now, because it is unimportant for just one graph)
• Select the graph style: The small piece of line to the left of a Y that defines a function is the style.
• Move cursor on it and press [ENTER] .
• Each [ENTER] (on same line) selects another style.
• On the next screen you have all the styles available on the calculator.
• Do not select the bubble on line 6: It is for animations. It will not leave a trace at the end of the plot.

Drawing the Graphs
• Press [GRAPH] to see the graphs.
• If one of them is missing, verify that its = is still highlighted, then use the [WINDOW] to set the Window dimensions,
• Here are the dimensions of the standard window

ZOOMING
You can also press [ZOOM] to adjust.

The selection 6:ZStandard sets the dimensions as on the screen Titled Window (above).

Apr 25, 2010 | Texas Instruments TI-84 Plus Calculator

### My TI--84 plus calculator won't display the 7 graph modes, and it won't graph equations simultaneously. What is wrong? I can only get an arrow icon and an arrow-bar icon.

Hello,
Use the [Y=] entry screen to enter the functions you want to graph. Make sure that the = sign after Y1, Y2 etc. is highlighted (black). If the = sign is not highlighted the corresponding function will not be drawn. You can can up to 10 functions, but what is the point of drawing so many if they overlap?
Anyway, to change the graph style of the curve for a particular function, use arrows to move to the line, then use left arrow to the bit of line that appears to the left of the Y. Highlight the segment an press ENTER. Each time you press ENTER the style changes to another one. Beware of the unconnected bubble style. During the drawing it will show the position of the point being drawn, but at the end, the whole curve, so to speak, evaporates.
As to simultaneous graphs, if it is important to you to have the graphs drawn for all the curves at the same time, you can enforce that by pressing [MODE], and using down arrow to reach the 6th line Sequential Simul. Use the right arrow to highlight Simul and press ENTER.
Whether drawn sequentially or simultaneously, all graphs will be displayed, except for the ones with the unconnected bubble as style.

Hope it helps.

Oct 02, 2009 | Texas Instruments TI-84 Plus Calculator

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