Hundreds of different types of graphing utilities exist, but a little stand out from the throng. Graphing calculators have fitted graphing software that permits you to make portable graphs without the required for a PC.

Instructions

• TI 89 Graphing Calculator

• Hit the "Y=" button.

• Enter your equation keen on "Y1" using the alphanumeric keypad. For instance, type in "X^2."

• Click the "Graph" key. The calculator will make a graph of the question on the monitor.

For Maple

• Clear the command line by hitting the "Delete" key or the "Backspace" key.

• Type the following into the command line:

> plot( x^2), x = -10..10 );
This will make a graph for x^2 (the second "x" tells the program that the variable you are plotting is "x"). The range that will show on the monitor is -10 to 10 on the number line. You can modify the equation or the range if necessary.

• Click "Enter." Maple will draw a graph on monitor.

For Mathematica

• Clear the input line by hitting the "Delete" key or by hitting the "Backspace" key.

• Enter the following into the input line (In[1]):
Plot[cos[x],{x,0,100}]

This will graph cos(x) from 0 to 100 on the number line.

• Hit "Enter."