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### Use the Coord. & Eq. Tool in Cabri Jr.

The **Coord. & Eq.** tool in the **Appearance** menu of Cabri Jr. on the TI-84 Plus is used to find the equation of an already constructed line or circle or to find the coordinates of a point appearing on the [more…]

### Use TI-Graph Link to Create and Save a TI-84 Program

You can create a program on the computer and then transfer it to your calculator (or vice versa). To do so, you need the TI Connect software, the TI-Graph Link software, and a TI-Graph Link cable to connect [more…]

### How to Enter Control Commands in a Program

The Program Control menu on the TI-84 Plus graphing calculator, which houses the control commands, is available only when you’re using the Program editor to create a new program or to edit an existing [more…]

### How to Download and Install Applications for the TI-84 Plus

The Texas Instrumentswebsite contains over 40 applications that you can download and install on your TI-84 Plus calculator. Most of these application programs are free; those that aren’t free are very [more…]

### How to Find the Area of the Intersection of Two Polygons

GeoMaster on the TI-84 graphing calculator can’t find the area of a polygon formed by the intersection of two other polygons because GeoMaster doesn’t know that it’s there. To get GeoMaster to find the [more…]

### Perform Calculations in GeoMaster on the TI-84 Plus

GeoMaster on the TI-84 Plus calculator is capable of adding and subtracting like measures that GeoMaster found using the **Distance/Length**, **Area**, or **Angle** [more…]

### Find the Slope and Construct a Vector with GeoMaster

GeoMaster in the TI-84 Plus graphing calculator offers several features from the **MEAS** menu, including the **Slope** tool and the **Vector Sum** tool. The **Slope** [more…]

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

When you translate a geometric object, you move it in a given direction for a given distance. A vector is used to tell GeoMaster in the TI-84 Plus graphing calculator the direction in which to move the [more…]

### Enter an Equation in TI-84 Plus Equation Solver

The second step of solving an equation in the TI-84 Plus graphing calculator's Equation Solver is to enter or edit the equation to be solved. The first step is to set the mode. To enter a new equation [more…]

### Start GeoMaster on the TI-84 Plus Calculator

When you start the geometry application GeoMaster on the TI-84 Plus calculator, you see the version number on the screen. If that number is smaller than 1.10 for GeoMaster, check out [more…]

### Create and Save GeoMaster Files on the TI-84 Plus

You can create a GeoMaster file in two ways on the TI-84 Plus calculator. If the GeoMaster screen is empty, just start creating your geometric figures. If the GeoMaster screen is not empty, select [more…]

### GeoMaster Menus on the TI-84 Plus Calculator

When you enter GeoMaster, the Menu bar appears at the bottom of the Ti-84 Plus calculator screen. If you are re-entering the application after it has been running in the background, press [more…]

### Construct Lines, Segments, Rays, and Vectors on the TI-84 Plus

Because two points determine a line, segment, ray, or vector, the directions for creating these objects with GeoMaster on the TI-84 Plus graphing calculator are much the same. To construct such objects [more…]

### Construct Circles with GeoMaster on the TI-84 Plus

A circle is determined by its center and its radius. The GeoMaster **DRAW** menu contains a plethora of tools that enable you to do mundane things such as construct lines, segments, triangles, polygons, and [more…]

### Construct Triangles and Arcs with GeoMaster on the TI-84 Plus

A triangle and an arc are determined by three points, so their construction is much the same. The GeoMaster **DRAW** menu on the TI-84 Plus calculator offers tools that enable you to construct triangles, arcs [more…]

### Construct Irregular Polygons with TI-84 Plus GeoMaster

You can use the GeoMaster **DRAW** menu on the TI-84 Plus graphing calculator to create irregular and regular polygons, circles, triangles, and many other basic geometric shapes. To create an irregular polygon [more…]

### Construct Regular Polygons with TI-84 Plus GeoMaster

A regular polygon is determined by its center and the number of its sides. You can use the GeoMaster **DRAW** menu on the TI-84 Plus graphing calculator to create regular and irregular polygons, circles, triangles [more…]

### Construct Perpendicular and Parallel Lines with GeoMaster

To construct perpendicular or parallel lines with GeoMaster on the TI-84 Plus graphing calculator, you have to start with an already constructed line, segment, ray, vector, or side of a polygon or triangle [more…]

### How to Move Figures with GeoMaster on the TI-84 Plus

When you move an object in GeoMaster on the TI-84 Plus, all other objects associated with that object will also undergo a change. To reshape a polygon or triangle, move one or more of its vertices. To [more…]

### Hide and Delete Objects with GeoMaster on the TI-84 Plus

There is a big difference between hiding and deleting an object in GeoMaster on the TI-84 Plus graphing calculator. If you hide an object, you can, if you so choose, bring it back in view at a later time [more…]

### Find Length and Distance with GeoMaster

The **Distance/Length** tool in the **MEAS** menu in GeoMaster on the TI-84 Plus graphing calculator is used to find the distance between two points, the length of a segment or vector, the circumference of a circle [more…]

### Find the Area with GeoMaster on the TI-84 Plus

GeoMaster on the TI-84 Plus graphing calculator can find the area of any circle, triangle, or *simple* polygon constructed using the **Circle**, **Triangle**, **Polygon** [more…]

### Find the Area of a Polygon Having Intersecting Sides

GeoMaster on the TI-84 Plus calculator can help you find the area of a polygon having intersecting sides. To find the area of a polygon having intersecting sides, break the polygon down into simple polygons [more…]

### How to Finding the Points of Intersection

When a graph is displayed in Inequality Graphing on the TI-84 Plus calculator, **Pol-Trace** is one of three options that appear at the bottom of the screen. The [more…]

### Probability Simulation Settings Editor on the TI-84 Plus

The Probability Simulation on the TI-84 Plus application contains four simulators (Tossing Coins, Rolling Dice, Picking Marbles form an urn, and Spinning a Spinner) that work much the same way. Some information [more…]