*Beginning Graphing Calculator Tips*

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**Graphing a function**

1. **Function notation**

You may wish to define an equation as a function by giving
it a function name. You can then refer to that function name in any subsequent
graphs or functions you wish to create. It is not possible to just ** type** a function like. To make Graphing Calculator understand that you are using
the symbols as a function rather than multiplication, you insert a
function by clicking the ÒMathÓ drop down menu and selecting ÒFunctionÓ.
Alternatively, you can type ÒCtrl-9Ó to insert a function. That is, first type

1. Graph the function by first entering the function as described above.

Note that entering the function does not graph the function. To graph the function, you must enter a new math expression. Then type and press enter to graph this function. Note that you must use the Ò insert functionÓ convention (Ctrl-M) when typing.

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2. Notice the buttons in the bottom right corner of the screen. These buttons allow you to

Zoom In and Zoom Out. Holding down the ÒCtrlÓ button while clicking these buttons

allows you to Zoom In/Out only along the horizontal axis. Holding down the ÒShiftÓ

key while clicking these buttons allows you to Zoom In/Out only along the vertical

axis.

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3. If your mouse is over either the *x*-axis or *y*-axis,
notice that the cursor changes to a hand

icon. If you click and drag, you can shift the graph around
on the screen.

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4. You can change the color of the graph of the function by clicking on the colored

square to the right of the equation you typed in, holding down the mouse button, and

choosing the desired color.

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5. Similar to the handheld graphing calculator, you can set the ÒViewing WindowÓ manually by

clicking ÒGraphÓ and choosing ÒSet 2D RangeÓ. Experiment with these settings.

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6. You can graph multiple equations at once. To insert another equation, we can click the ÒMathÓ drop

down menu and choose ÒNew Math ExpressionÓ. Alternatively, you can press ÒCtrl-MÓ to insert a

new math expression.

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7. Experiment with graphing other types of functions and creating an appropriate viewing

window. If you are not sure of how to type a particular function (e.g. absolute value,

exponential, logarithmic, etc.), click the ÒHelpÓ drop down menu and choose

ÒRecognized FunctionsÓ. Also, you can find selected functions under the ÒMathÓ drop

down menu located at the top of the screen. Further, you can choose to have a Key

Palette showing that provides select functions. To view the Key Palette, click ÒMathÓ

and select ÒShow KeypadÓ.

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