HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Strona 392

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Press or to decrease or increase the value of the selected parameter. Press or to
select another parameter.
You can switch back to graph mode by tapping
.
Test mode
Tap 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 ve 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.
344 Chapter 21 The Explorer apps
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