It will depend on the class. Nothing is impossible without the TI83, but some classes might require it so you can graph and write programs to go along with the math curriculum.
On my graphing calculator, a TI84 Plus, I can enter the equation into the Y= (a button) and then graph it by hitting the Graph button.
Hit "Y plot" and insert your equation, then hit graph.
The TI-83 calculator uses 4 AAA batteries.
hit the y= button, then type in the equation, then hit the graph button, then sketch what you see on the screen
You cannot. A calculator is programmed. It is made to calculate correctly.
There are online graphing calculators. However, as of writing, there is no emulated TI83 that runs within your browser. On the other hand, if you have a Ti83, it is possible to copy its ROM to run an emulated TI83 on your desktop via one of many emulators.
Graph the equation then find the x intercepts.
Click the y = button which is probably located in the top left corner. Type in the equation you wish to graph and press the graph button wich is located somewhere on the top right side.
does it have graph calculator
You find the equation of a graph by finding an equation with a graph.
Some TI83's can be set up differently, so it is highly recommendable to read the user guide for the TI83 in question. The user would need to go into the VarStat option and enter all the appropriate fields to have the calculator bring in the appropriate variables and totals.