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Graphing Calculators

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How to Construct a Midpoint with the TI-84 Plus

With GeoMaster on the TI-84 Plus graphing calculator, you can construct the midpoint of an already constructed segment or the midpoint between two existing points. The segment can be the side of a triangle [more…]

How to Determine If Two Lines Are Parallel or Perpendicular

It is often the case that when you construct lines, two lines may look parallel or perpendicular, when in fact they aren’t. GeoMaster on the TI-84 Plus graphing calculator can determine whether lines are [more…]

How to Determine If Three Points Are Collinear on the TI-84 Plus

Three points are collinear if they are on the same line. GeoMaster on the TI-84 Plus graphing calculator can determine whether lines are parallel or perpendicular for you. It is sometimes difficult to [more…]

How to Measure an Angle with GeoMaster

For GeoMaster on the TI-84 graphing calculator to recognize the existence of an angle, that angle must contain three defining points: the vertex and a point on each side of the angle. Also, GeoMaster recognizes [more…]

How to Find the Equation of a Line on the TI-84 Plus

The Eqns/Coords tool in theGeoMaster MEAS menu on the TI-84 Plus calculator can be used to find the equation of a line, the equation of a circle, or the coordinates of an already constructed point. It [more…]

Recall and Delete GeoMaster Files on the TI-84 Plus

To recall a GeoMaster file previously saved in memory on the TI-84 Plus graphing calculator, select Open File from GeoMaster’s File menu by pressing [Y [more…]

How to Find Points of Intersection on the TI-84 Plus

You can use the TI-84 Plus graphing calculator to find the points intersection of two graphs. Locating the point of intersection of two graphs with the arrow keys gives you an [more…]

How to Graph Functions on the TI-84 Plus

After you have entered functions into the TI-84 Plus graphing calculator, the calculator has a variety of features that help you painlessly graph a function as well. [more…]

Format Menu Options on the TI-84 Plus

When you are creating a graph on the TI-84 Plus graphing calculator, you must select the format for the graph from the options on the Format menu. In the Format menu, each line of the menu will have one [more…]

How to Graph Several Functions on the TI-84 Plus

If you’re graphing several functions at once on the TI-84 Plus graphing calculator, it’s not easy to determine which graph each function is responsible for. To help clear this up, the calculator allows [more…]

How to Graph Piecewise-Defined Functions on the TI-84 Plus

When graphing a piecewise-defined function on the TI-84 Plus graphing calculator, some people cop out and simply graph each of the separate functions that appear in it. But this does not result in an accurate [more…]

How to Graph Trig Functions on the TI-84 Plus

The TI-84 Plus graphing calculator has built-in features especially designed for graphing trigonometric functions. It produces graphs that look like graphs you see in text books; and when you trace these [more…]

View Function and Graph on Same TI-84 Plus Screen

If you’re planning to play around with the definition of a function you’re graphing on the TI-84 Plus graphing calculator, it’s quite handy to have both the Y [more…]

Save and Recall a Graph on the TI-84 Plus

If you want to save your graph as a Graph Database on the TI-84 Plus graphing calculator, when you recall the graph at a later time, the graph remains interactive. This means that you can, for example, [more…]

ZStandard, ZDecimal, and ZTrig Zoom Commands on the TI-84 Plus

The ZStandard, ZDecimal, and ZTrig Zoom commands on the TI-84 Plus graphing calculator help you to initially graph or regraph your function in a preset viewing window. [more…]

ZoomFit, ZoomStat, ZSquare, and ZInteger Commands on the TI-84 Plus

Zooming on the TI-84 Plus allows you to quickly adjust the viewing window for the graph so that you can get a better idea of the nature of the graph. The [more…]

Zoom In, Zoom Out, and ZBox Commands on the TI-84 Plus

The TI-84 Plus graphing calculator offers several methods of zooming. The Zoom In, Zoom Out, and ZBoxcommands enable you to zoom in or zoom out from an already graphed function. [more…]

How to Trace a Graph on the TI-84 Plus

Tracing a graph on the TI-84 Plus graphing calculator shows you the coordinates of the points that make up the graph. After you have graphed your function, you can press [more…]

How to View TI-84 Plus Tables and Graphs on Same Screen

After you have graphed your functions and created a table of functional values on the TI-84 Plus graphing calculator, you can view the graph and the table on the same screen. [more…]

How to Find the Zeroes of a Function with the TI-84 Plus

You can use the TI-84 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 the Minimum and Maximum Points on a Graph

You can use the TI-84 Plus graphing calculator to find the minimum and maximum points on a graph. Finding the maximum or minimum point on a graph has many useful applications. For example, the maximum [more…]

How to Display Functions in a Table on the TI-84 Plus

After you’ve entered the functions in the Y=, you can have the TI-84 Plus graphing calculator create a table of functional values.

To create a table, perform the following steps: [more…]

How to Use Formulas to Enter Data in the TI-84 Plus

Use can use formulas to enter statistical data in the TI-84 Plus calculator. The image here illustrates how you would place the sequence 10, 20, ..., 200 in list [more…]

How to Store Data Points in Inequality Graphing

When you start Inequality Graphing on the TI-84 Plus for the first time, the application creates two lists, INEQX and INEQY, to house the x- and y-coordinates of data points that you store in the calculator [more…]

How to Solve Linear Programming Problems on the TI-84 Plus

You can use Inequality Graphing on the TI-84 Plus to solve linear programming problems. Linear programming is a method for finding the maximum or minimum value of a multivariable function that is constrained [more…]

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