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### How to Trace a Graph on the TI-83 Plus

After you have graphed your function on the TI-83 Plus graphing calculator, you can press **[TRACE]** and then use the right and left arrow keys to more closely investigate the function. [more…]

### Display Functions in a Table on the TI-83 Plus

After you’ve entered the functions in the Y= editor, you can have the TI-83 Plus graphing calculator create a table of functional values. To create a table, perform the following steps: [more…]

### View Table and Graph on the Same TI-83 Screen

After you have graphed your functions on the TI-83 Plus graphing calculator, and created a table of functional values, you can view the graph and the table on the same screen. To do so, follow these steps [more…]

### Find the Value of a Function on TI-83 Plus

When you trace the graph of a function on the TI-83 Plus graphing calculator, the trace cursor doesn’t hit every point on the graph. So tracing is not a reliable way of finding the value of a function [more…]

### Find the Zeroes of a Function on TI-83 Plus

You can use the TI-83 Plus graphing calculator to find the zeroes of a function. The *zeros* of the function *y* = *f*(*x*) are the solutions to the equation *f* [more…]

### How to Find Max and Min on the TI-83 Plus

You can use the TI-83 Plus graghing calculator to find the maimum and minimum points on a graph, which has many useful applications. For example, the maximum point on the graph of a profit function not [more…]

### Find Points of Intersection on the TI-83 Plus

You can use the TI-83 Plus graphing calculator to locate the point of intersection of two graphs. Doing so with the arrow keys gives you an *approximation* [more…]

### Find the Slope of a Curve on TI-83 Plus

The TI-83 Plus graphing calculator is not equipped to find the derivative of a function. But it is equipped with a numerical routine that evaluates the derivative at a specified value of [more…]

### Evaluate a Definite Integral on the TI-83 Plus

You can use the TI-83 Plus graphing calculator to evaluate a definite integral. For example, if the function *f*(*x*) is positive for the following value [more…]

### Draw Lines and Line Segments on a TI-83 Plus Graph

With the TI-83 Plus graphing calculator, you can draw line segments, horizontal lines, and vertical lines on the graph of functions, parametric equations, polar equations, or sequences. To draw a line [more…]

### Draw Circles and Tangents on a TI-83 Plus Graph

The steps for drawing a circle on a graph with the TI-83 Plus graphing calculator are similar to drawing a line segment on the graph. Press **[2nd][PRGM]** [more…]

### Draw Functions on a Graph on the TI-83 Plus

The Draw feature on the TI-83 Plus graphing calculator takes care of many problems for you. You can use it to draw functions on a graph. It will even graph the inverse of a function! [more…]

### Shade between Functions on the TI-83 Plus

Regardless what mode the TI-83 Plus graphing calculator is in, you can shade only between functions written specifically as functions of the independent variable [more…]

### Write Text on a Graph on the TI-83 Plus

You can use the TI-83 Plus graphing calculator to write text on a graph. Writing text on a graph is quite useful. For example, you can indicate the numerical value of tick marks on the axes and you can [more…]

### How to Erase Drawing on the TI-83 Plus

Because the Draw menu on the TI-83 Plus graphing calculator has no Undo feature, the capability to erase is important — and three types of erasing are possible: erase all drawings, erase a [more…]

### Save Graphs and Drawings on the TI-83 Plus

A graph that contains drawings can be saved only as a Picture on the TI-83 Plus graphing calculator. When you recall that Picture from memory, all you can do is look at it. You cannot, for example, change [more…]

### How to Enter a Sequence on the TI-83 Plus

The following lists the steps for entering a sequence into the TI-83 Plus graphing calculator. For the sake of simplicity, this example is for entering the sequence u [more…]

### Format Menu Options on the TI-83 Plus

The second line of the Format menu when the TI-83 Plus graphing calculator is in Sequence mode gives you a choice: You can display the coordinates of a point in rectangular form [more…]

### Window Editor Variables in Sequence Mode on TI-83 Plus

The Window editor when the TI-83 Plus graphing calculator is in Sequence mode offers the following list of variables you must set when graphing a sequence: [more…]

### How to Graph Sequences on the TI-83 Plus

In spite of the power of the TI-83 Plus graphing calculator, it’s rather limited when dealing with sequence functions. However, after you have entered the sequence functions into the calculator, you can [more…]

### Graph Several Sequences on the TI-83 Plus

Even if you’ve put the TI-83 Plus calculator in the Sequential mode for graphing functions, it’s going to graph all sequences simultaneously. So you can’t tell the sequences apart simply by looking at [more…]

### Save and Draw Sequence Graphs on the TI-83 Plus

After you’ve graphed your sequences on the TI-83 Plus graphing calculator, you can save the graph and its entire Window, Y= editor, Mode, and Format settings in a Graph Database. When you recall the Database [more…]

### Using ZOOM in Sequence Mode on the TI-83 Plus

Pressing **[ZOOM]** accesses the Zoom menu on the TI-83 Plus graphing calculator. On this menu you see all the Zoom commands that are available for graphing functions. Not all of them are useful when graphing [more…]

### Trace a Sequence on the TI-83 Plus

After you have graphed your sequences on the TI-83 Plus graphing calculator, press **[TRACE]** and then use the right arrow key to investigate the sequence or sequences. Here’s what you will see, and what [more…]

### Display Sequences in a Table on the TI-83 Plus

After you’ve entered the sequence functions into the TI-83 Plus graphing calculator, you can have the calculator create a table of the terms in the sequences. To create a table, follow these steps: [more…]