How do you plug h(x)=(1/2x-2) squared into a ti 83 calculator and it will graph the function for you

You're trying to graph a function that does not involve stat plot features, while the calculator is expecting them. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

You can't simply enter 7x+9=30 into the calculator, there is a way to calculate what the x is but its been a few years since I've done these..

in order to give the calculator a function to graph, you will want to enter the y= window by pressing the top left most button on the calculator. a menu similar to the one above will open, wherein you can enter an equation for the calculator to graph, such as (x^2-2). On the ti-83 itself, you can enter up to 9 equations to be graphed at once. after that, you may want to go to the window menu, where you can set the dimensions of the graphing plane in both the x row and y column. to view the graph, press the top right most button on the device.
hope that helps :)

To clean the slate so to speak, just reset the RAM.

1. Press [2nd][+] to access the (MEM)ory management function
2. Press [7:Reset]
3. Press [1:All Ram]
4. Press [2:Reset]
5. Press [CLEAR] to erase the "RAM cleared" Message

Calc

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

You must deactivate the statistical plots. If you do statistical graphs, the graphing is reconfigured in a way that happens to be incompatible with regular fuction graphs.

1. To deactivate the statistical plots.
2. Press [2nd][Y=] to access the (STAT PLOT) menu.
3. Press [4:PlotsOff][ENTER].
4. Calculator displays Done.
5. You are ready to draw the function graphs.
   

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).

Parabolas are forms of the base equation X^2. So press the [Y=] key, and then type in the variation of x squared that you want

Check the links below:

TI-83-Plus Calculator Basics Tips and Techniques

TI-83 GUIDEBOOK

Part II: Texas Instruments TI-83, TI-83 Plus Graphics Calculator ...


Getting Started with the TI-83 and TI-83 Plus Graphing Calculators


INTRODUCTION TO THE TI-83 AND TI-83 PLUS Basics


Getting started Texas Instruments TI-83 and TI-83 plus calculators


Calculator Notes for the TI-83 and TI-83 Plus


Texas Instruments. TI-83 Plus graphing calculator - Guidebook ...

How do I fix my Ti 83 calculator's window range error and do the graph?Because without that fixed I can't do my graph atall.