How Use a Graphing Calculator

This is not your average calculator. Graphing calculators, used widely in high school math classes, are like hand-held computers that are able to not only add 1+1 but also solve proofs, find derivatives and plot graphs in the same size container as a walkman. These mathematical gadgets are capable of handling multiple equations at once, reading lines of text and even being programmed for gaming. Luckily, you found this guide that will show you how find your way around the modern marvel that is the graphing calculator.

Instructions
1. Get familiar with the keypad. Unlike a normal calculator, the graphing calculator utilizes a keypad that is similar to a phone keypad as it features both numbers and letters. The letters are only able to be accessed if your hit the "Alpha" key, which is located in a different place on various models of calculators. Also unlike the traditional calculator, the graphing calculator has an "On" button and an "Off" button.

2. Find the exponent button on your calculator. This is one of the calculator's most useful features, as it allows you to quickly and easily find any number to any exponent. You can even use the letters to enter in a value for X to the N exponent, a helpful trick when writing out variable equations.

3. Locate the "Y=" button, traditionally found along the top of the calculator underneath the screen. This button will allow you to write equations that can be turned into graphs. An example of a "Y=" equation that will yield a graph is:Y=3X +6You can also utilize the "Y=" button for multiple equations, therefore multiple graphs on the same axis.

4. Graph the equation above clicking on the "graph" button, usually found next to or near the "Y=" button under the screen of the calculator. This will toggle any equations you have written out into a grid and draw the graph line through it appropriately. Most calculators also have zoom buttons available so you can scroll close to your graph or further away as necessary. You can return to the equation view by selecting the "Y=" button again.

5. Find the contrast and brightness buttons on your calculator. Since the screens are far more advanced than a normal calculator, it is important you manipulate saturation and brightness to a level that is comfortable to your eyes. Consider making the screen darker than it defaults to, as this will make reading graphs easier.