Test modeTap to enter test mode. In test mode you test your skill at matching an equation to the graph shown. Test mode is like equation mode in that you use the cursor keys to select and change the value of one or more parameters in the equation. The goal is to try to match the graph that is shown.

The app displays the graph of a randomly chosen sinusoidal function. Tap a Level

button— , and so on—to choose between one of five types of sinusoidal equations.

Now press the cursor keys to select each parameter and

set its value. When you are ready, tap to see if you have correctly matched your equation to the given graph.

Tap to see the correct answer and tap to exit Test mode.

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The Explorer apps

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HP Prime Graphing NW280AAABA manual Now press the cursor keys to select each parameter