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### Construct Circles in Cabri Jr. on the TI-84 Plus

You can use the Cabri Jr. geometry application on the TI-84 Plus to construct circles. A circle is determined by entering its center and its radius. To construct a circle, follow these steps: [more…]

### Construct Triangles and Quadrilaterals in Cabri Jr.

Three points determine a triangle and four points determine a quadrilateral. So the construction of each is quite similar. To construct a triangle or quadrilateral in the Cabri Jr. geometry application [more…]

### Construct Perpendicular and Parallel Lines in Cabri Jr.

You can construct perpendicular or parallel lines in the Cabri Jr. geometry application on the TI-84 Plus calculator. To construct such lines, you have to start with an already constructed line, segment [more…]

### Move and Reshape Figures in Cabri Jr.

You can move and reshape figures in the Cabri Jr. geometry application for the TI-84 Plus. When you move an object, all other objects associated with that object will also undergo a change. The circle [more…]

### How to Find Length and Distance in Cabri Jr.

You can use the **Appearance** menu in the Cabri Jr. geometry application for the TI-84 Plus calculator to find distance and length of segments. The **D. & Length** [more…]

### How to Determine Area in Cabri Jr. on the TI-84 Plus

In Cabri Jr. on the TI-84 Plus, you can use the **Area** tool in the **Measure** submenu of the **Appearance** menu to find the area of an already constructed circle, triangle, or quadrilateral. [more…]

### Perform Calculations in Cabri Jr. on the TI-84 Plus

Cabri Jr. for the TI-84 Plus graphing calculator is capable of adding, subtracting, multiplying, and dividing any two measurements appearing on the screen. It can also find the square root of a measurement [more…]

### Translate a Geometric Object in Cabri Jr.

When you translate a geometric object, you move it in a given direction for a given distance. To get Cabri Jr. on the TI-84 Plus calculator to do this for you, you use a segment to tell Cabri Jr. the direction [more…]

### How to Find the Slope in Cabri Jr. on the TI-84 Plus

In Cabri Jr. for the TI-84 Plus calculator, you can use the **Slope** tool in the **Measure** submenu of the **Appearance** menu to find the slope of a line, segment, or side of a triangle or quadrilateral. [more…]

### Construct Points of Intersection in Cabri Jr.

The Cabri Jr. geometry application for the TI-84 Plus calculator can construct the points of intersection of any pair of the following types of objects: lines, segments, circles, and sides of triangles/polygons [more…]

### Hide and Delete Objects in Cabri Jr.

You can hide and delete objects in the Cabri Jr. geometry application for the TI-84 Plus graphing calculator. There is a big difference between hiding and deleting an object. If you [more…]

### How to Reflect Geometric Objects in Cabri Jr.

Cabri Jr. for the TI-84 Plus calculator allows objects to be reflected in a line or a segment. When a geometric object is reflected in a line, that line acts like a mirror — hence the term “reflection. [more…]

### Tile the Plane in GeoMaster on the TI-84 Plus

The **Symmetry** tool in the **TRFM** menu on the TI-84 Plus calculator can be used to tessellate (tile) the plane with a geometric figure by rotating that object 180 degrees about a specified point. Unlike the [more…]

### Rotate Geometric Objects with the TI-84 Plus

When a geometric object is rotated, it is rotated about a given point through a given angle. To use GeoMaster on the TI-84 Plus graphing calculator to rotate an already constructed geometric object, follow [more…]

### How to Manipulate Single-Variable Data on TI-Nspire

TI-Nspire allows two-way manipulation of data, which means that you can change values in the Lists & Spreadsheet application and watch a Data & Statistics graph update automatically. Likewise, you can [more…]

### One-Variable Statistics on the TI-Nspire

On the TI-Nspire, you scan perform some basic statistical functions on a single data set. Assume that you’ve entered the first-semester averages for two Algebra II classes in a column titled [more…]

### Enter Data for a Scatter Plot in the Graphs Application

You can use the Lists & Spreadsheet application on the TI-Nspire to enter data to construct a scatter plot. Before you perform a regression, it’s almost imperative that you view a scatter plot of the data [more…]

### How to Insert a Graphics Page for a Scatter Plot

After you have entered data to construct a scatter plot, you can inspect the scatter plot in the Graphs application of the TI-Nspire. Here’s what you do: [more…]

### How to Perform a Cubic Regression

If a cubic polynomial is a good fit for the data on a scatter plot, you need to perform a cubic regression. You can do this in the TI-Nspire Lists & Spreadsheets application. To perform a regression, follow [more…]

### Results of a Regression on the TI-Nspire

A variety of variables (26 in all) are stored by TI-Nspire after a regression. To view this list, add a Calculator page and press **[VAR]**. Using the [more…]

### How to Graph and Update a Regression Equation

You can view the graph of a regression equation on the TI-Nspire Graphs page and even change the data and have the TI-Nspire update the equation automatically. To view the graph of your regression equation [more…]

### How to Perform a Second Regression on the Same Data

Assume that you have used a set of data on the TI-Nspire to create a scatter plot and perform a regression. Perhaps you want to construct a second scatter plot and associated regression on the TI-Nspire [more…]

### How to Store Variables in Geometry on TI-Nspire

When working on the TI-Nspire, many situations might arise that require you to investigate a geometric object numerically and algebraically. Take, for example, the situation in which you want to determine [more…]

### Configure Lists & Spreadsheet for Data Capture

Your stored variables are available for use in any application that is part of the same problem. You can use these variables to set up the TI-Nspire Lists & Spreadsheet page for data capture. [more…]

### How to Graph a Scatter Plot of Data

You can graph a scatter plot of your data on the TI-Nspire; you can collect data automatically or manually. If you are ready to configure a scatter plot of already entered [more…]