TI-84 Graphing Calculator - Analyzing

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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…]

How to Create Accurate Graphs on the TI-84 Plus

The TI-84 Plus graphing calculator can do only what you tell it to do — which doesn’t always produce an accurate graph. Following are the three main causes of inaccurate graphs, and their solutions: [more…]

How to Start and Quit Transformation Graphing

With the Transformation Graphing application that comes preloaded on the TI-84 Plus family of graphing calculators, you can investigate transformations of a graph without leaving the graphing screen. [more…]

How to Graph Transformations on the TI-84 Plus

The Transformation Graphing application on the TI-84 Plus graphing calculator graphs transformations in three different ways called play types: Play-Pause [more…]

How to Create a Slide Show on the TI-84 Plus

A slide show allows you to view the graphs of a sequence of transformations of a function. Each picture in the slide show displays one transformation, and you can run your slides in slow or fast motion [more…]

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

You can use your TI-84 Plus calculator to find the zeroes of a function. The zeros of the function y = f(x) are the solutions to the equation f(x) = 0. Because [more…]

How to Find the Minimum and Maximum Points on a Graph

Finding the maximum or minimum point on a graph on your TI-84 Plus calculator has many useful applications. For example, the maximum point on the graph of a profit function tells you not only the maximum [more…]

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

You can use the TI-84 Plus calculator to find accurate points of intersection for two graphs. Using the arrow keys in a graph activates a free-moving trace. However, using a free-moving trace rarely locates [more…]

Find the Slope of a Curve with the TI-84 Plus

You can find the slope of a curve with the TI-84 Plus calculator, even though it is not equipped to find the derivative of a function. For example, it can't tell you that the derivative of [more…]

Evaluate a Definite Integral with the TI-84 Plus

You can use your TI-84 Plus calculator to evaluate a definite integral, which gives the area between the curve and the x-axis. For example, if f(x) is positive for [more…]

How to Compose Functions on the TI-84 Plus

Sometimes functions are composed together. This may look like, f(g(x)). Function composition is really just substituting one function into another function. Fortunately, you can use your TI-84 Plus calculator [more…]

Graph the Derivative of a Function on the TI-84 Plus

In calculus, you need to graph the derivative of a function in order to find its critical points, which you can do on your TI-84 Plus calculator. Just follow these steps: [more…]

Solve Equations by Graphing on Your TI-84 Plus

There are a number of different ways to solve an equation by graphing on your TI-84 Plus calculator. The basic idea is to set the equation equal to zero, graph it, and find the zeros. This method has a [more…]

How to Draw the Inverse of a Function on the TI-84 Plus

The big idea of inverse function is that x and yswitch places. Your TI-84 Plus calculator has a built-in feature that enables you to "draw" the inverse of a function. Essentially, the calculator is [more…]

How to Enter Functions on the TI-84 Plus

Before you can graph a function on your TI-84 Plus calculator, you must enter it into the calculator. The calculator can handle up to ten functions at once, [more…]

How to Graph Functions on the TI-84 Plus

After you have entered functions into the TI-84 Plus calculator and formatted your graph, you’re almost ready to start your graphing fun. Once you get the hang of graphing, you won’t need to go through [more…]

Format Menu Options on the TI-84 Plus

The TI-84 Plus calculator has a variety of features that help you easily format the graph of a function. Set the graph format settings by following these steps: [more…]

How to Adjust the Color/Line Settings on Your TI-84 Plus Graph

If you’re graphing several functions on your TI-84 Plus calculator at once, your calculator automatically graphs each function in a different color. If you have the TI-84 Plus C, you may want to change [more…]

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

A piecewise function is actually made up of “pieces” of different functions. Each function “piece” is defined over a certain interval. Using your TI-84 Plus calculator to graph piecewise functions can [more…]

How to Graph Trig Functions on the TI-84 Plus

The TI-84 Plus calculator has built-in features especially designed for graphing trigonometric functions. They produce graphs that look like graphs you see in textbooks, and when you trace these graphs [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 your TI-84 Plus calculator, it’s quite handy to have both the Y= editor and the graph on the same screen. That way [more…]

Save and Recall a Graph on the TI-84 Plus

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

How to Trace a Graph on the TI-84 Plus

After you graph a function on your TI-84 Plus calculator, you can press [TRACE] and use the right-arrow and left-arrow keys to more closely investigate the function. [more…]

Tracing Features of the TI-84 Plus C Calculator

The TI-84 Plus C calculator allows you to change the TraceStep. The TraceStep is the amount the x-value changes each time you press right- or left-arrow keys when tracing a function. The default TraceStep [more…]

ZStandard, ZDecimal, ZTrig, and ZQuadrant1 Zoom Commands on the TI-84 Plus

The ZStandard, ZDecimal, ZTrip, and ZQuadrant1 zoom commands help you initially graph or regraph your function in a preset viewing window. To use these zoom commands, enter your function into the calculator [more…]

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