Modifying a Graph
(10)Tap [Modify].
•This graphs the functions using the a and b variable start values you specified on the Graph Controller dialog box, and displays “Modify” on the Graph window.
(11)Modify the graphs by changing the value of variable a or b.
•To change the value of variable a, press the left or right cursor key, or tap the left or right graph controller arrow.
•To change the value of variable b, press the up or down cursor key, or tap the up or down graph controller arrow.
e
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e
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e
e
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(12)To quit graph modification, tap 
on the icon panel.
•This causes “Modify” to disappear from the display, returning to the normal Graph window.
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