Question about Texas Instruments TI-84 Plus Calculator

# I cannot seem to clear the circle graphs. I have gone into the y= and cleared all entries but when I hit graph it keeps showing the previous circles I graphed. How can I clear these entries?

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• Texas Instru... Master

Hi,
Press [2nd][DRAW][1:ClrDraw]. An empty graph screen appears. Press [2nd][QUIT] to return to the main calculator screen.
Hope it helps.

Posted on Nov 17, 2009

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Posted on Jan 02, 2017

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## Related Questions:

### How do i graph a circle

Use the conics utility
Scroll until you find the equation of a circle and an image, Select it, then enter the coefficients.

Jul 24, 2014 | Casio Office Equipment & Supplies

### Graph a circle

Use the conics utility
Scroll until you find the equation of a circle and an image, Select it, then enter the coefficients.

Jul 24, 2014 | Casio Office Equipment & Supplies

### Is the graph of a circle a function?

No. The graph of a circle is a graph, one which can have two different values for certain arguments. The graph of the top or bottom half of a circle can be considered a graph of a function.

Jan 08, 2014 | Texas Instruments TI-84 Plus Calculator

### To graph a circle with radius 4

Press [2nd][PGRM] to open the (DRAW) utility. Scroll down to reach the line 9: Circle( and press ENTER. Complete the command by supplying the coordinates of the circle center and the radius.
Circle(0,0,4) draws a circle with center at the origin (0,0) and radius 4.
By the way the equation of a circle is not a function. You have to cut it into the upper brach and the lower part to graph it.
y=+SQRT(16-x^2) and y=-SQRT(16-x^2)

Sep 01, 2011 | Texas Instruments TI-84 Plus Silver...

### My fx-9750GA PLUS wont graph lines, cicles or paraballas

To draw functions (regular, parametric, polar, sequences) use the application graph: Highloghted on 1st screen capture. The second screen captures shows you the functions y=f(x). enter a legal expression and press F6 Draw. To set TYPE press the key under TYPE.

To draw conics (circles, parabolas, hyperbolas, and ellipses) use the CONiCS applications. (See 3rd screen ). On 4th capture the equation highlight is one for the parabola. y=x^2

Scroll down or up examining the small graphs. They will show you which equation form to choose.
For the circles

Jun 19, 2011 | Casio FX-9750GPlus Calculator

### 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)
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

### I'm trying to graph a circle on my TI-83 Plus. 1.) I don't know the way to trick the calculator into graphing the circle 2.) When I try to graph I get 'ERR:WINDOW RANGE' I don't want to use draw and i...

Here is the link to post where I show several ways to draw a circle. If you do not have the conics applications download and instakk it on the calculator.
You can also use the cabri Jr application downloadable from education.ti.com. This application is dedicated to geometry.

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

### 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...

### The calculator is only graphing a half circle when it should be a full circle, specifically not in the negative y-values of the plane.

A circle is not a function and cannot be graphed in the regular y=screen. You can graph a circle in parametric mode.

To graph a circle in the regular y= screen, you have to graph it in 2 lines on the y= screen. I assume you've solved for y and gotten a square root equation. Remember a square root can be positive or negative. In line 1 of y= screen graph what you've been graphing and then graph the same equation in line 2 but with a negative in front of the equation. You'll get something that looks like an oval since the calculator screen is rectanglular. To make it look more circular (both parts aren't going to connect), press zoom and then select #5 (square).

Aug 01, 2009 | Texas Instruments TI-83 Plus Calculator

### Graphing circles

You have two methods for drawing a circle on the FX-9750GPlus.
1. Use the Conics graphing: The general equation of a circle is aX^2 + aY^2 + bX+cY+d=0
2. Use the function graphing. But before you can do that you must transform the general equation (above) in such a way that you can write it as Y^2= X^2+EX+F. From this you can find the two branches Y1=SQRT(X^2+EX+F) and Y2=-SQRT(X^2+EX+F)

Oct 09, 2007 | Casio FX-9750GPlus Calculator

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