Graphing

• Creating graphs on the TI-84 is simple. Enter your data in lists, which can be found under the "STAT" key, then click "EDIT." Once the data is in place, turn on the graph of your choice. You may choose between histogram, bar-graph, line graph, scatter-plot or box and whiskers.
  
  

Function of an Equation

• To take graphing a step further, you can enter a function into the "Y=" area. For example, you could enter Y= X+2. This will now graph your data as a function of the equation Y=X+2.
  
  If you would like to compare the original data with the data that resulted from the function of the equation, while still on the Y= screen, click the left arrow key until the blinking cursor is on the backslash and click "ENTER". Once the "\" changes to bold font, you may hit "GRAPH" again (Reference 2) You will see your original data and also the data of the equation in bold. This allows you to compare the two sets of data.
  
  

High Tech Features

• According to Texas Instruments, the TI-83 has a flash ROM memory which lets students update their calculator as well as additional software applications (Reference 1). The ability to download updates and additional software will aid the student as advancements are developed, rather than having to purchase a updated calculator.
  
  Some applications, such as Zoom Math Starter Edition, have the ability for the student to actually enter in a math problem straight from his textbook, according to Texas Instruments (Reference 1).
  
  

Equation Solver

• According to North Carolina University, the TI-83 has a built-in equation solver which will find the answer to any algebra problem, as long as it is written in this form: "some function=0" (Reference 1).
  
  As many realize, any equation can be rewritten to fit the "some function=0" format. For example if you have X+7=X, you can reformat this to say (X+7)-X=0.
  
  To have the calculator solve this equation click on "MATH" and then "SOLVER" and then "ENTER" and type in the revised formula.
  
  

Additional Uses

• The potential of a TI-83 goes far beyond the scope of this article. The above features will get anyone started. With more advanced courses and skill levels, there are still more tricks to learn. A quick reference sheet can be found on the Pearson Higher Education website. (Resource 1)