3D Graphing 375
Exploring the Graph
Exploring the GraphExploring the Graph
Exploring the Graph
From the Graph screen, you can:
• Trace the equation.
•Use the „
Zoom toolbar menu to zoom in or out on a portion of the graph. Some of
the menu items are dimmed because they are not available for 3D graphs.
•Use the ‡
Math toolbar menu to evaluate the equation at a specified point. Only
1:Value is available for 3D graphs.
You can also evaluate
z(x,y) while tracing. Type the x value and press ¸; then type
the y value and press ¸.
5. Change the graph format if necessary.
ƒ
9
– or -
8
F
Note:
To help you see the orientation of
3D graphs, turn on
Axes and Labels.
6. Graph the selected equations
(8%).
Note: Before displaying the graph, the
screen shows the “percent evaluated.”
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