The TI-83 graphing calculator can be used to plot simple algebraic shapes such as lines and parabolas with an equation or a table of values. Tapping into the latter functionality requires setting up a statistics table with two columns -- one for x-axis values and one for y-axis values. After setting it up, you need only enable statistics plotting, set up coordinates corresponding to the graph's range and then graph it.
Instructions
1. Press the "STAT" button and then hit "ENTER."
2. Enter the first x-axis value, press the down arrow, enter the second x-axis value and continue doing this until all the x-axis values have been submitted. Press the right arrow key, enter the first y-axis value, press the down arrow, enter the second y-axis value and continue doing this until all the y-axis values have been submitted.
3. Press the "2ND" button and then the "Y=" button. Press "ENTER" twice.
4. Enter a number corresponding to the minimum x-axis coordinate that the graph should cover. Press the down arrow and then enter the number corresponding to the maximum x-axis coordinate that the graph should cover. Press the down arrow twice, enter the y-axis minimum, press the down arrow again and enter the y-axis maximum.
5. Press the "GRAPH" key.
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