Interact with this GeoGebra applet below for a few minutes. [br][br]Note the parametric equations for each of these 3 surfaces. [br]Be sure to move the sliders around. [br][br]What does each one do? [br]How does each one affect each surface? [br][br][b][color=#1e84cc]To explore in augmented reality, see the directions below the applet. [/color][/b]

1) Open GeoGebra 3D app on your device. [br]2) Press the 3 horizontal bars (upper left corner). Select OPEN. [br][br]3) In the SEARCH TAB that appears, type [b]zfnt8hdc[/b]. [br] Note this string of characters can be found in the URL here. [br] Be sure to either copy & paste this code or type it just the way you see it here. [br][br] The sliders you see in the Algebra view on your device will be the same as those seen here.