Texas Instruments TI-89 Titanium User Manual page 87

Steps and keystrokes
4. Display the
Window Editor
Window variables appropriate for
this example.
You can press either D or ¸ to enter
a value and move to the next variable.
Press 8 $ 0 D 3 D .02 D ? 2
D 25 D 5 D ? 2 D 10 D 5
5. Graph the parametric equations to model
the path of the ball.
Press 8 %
6. Select . Then move the cursor
Trace
along the path to find the:
• y value at maximum height.
• t value where the ball hits the
ground.
Press ... B or A as necessary
Previews
Display
. Enter
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