Casio ALGEBRA FX 2.0 PLUS Manual page 71

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Example Draw a line that is tangent to point (2, 0) on the graph for
y x
=
Use the following V-Window settings.
Xmin = –5,
Ymin = –5,
Procedure
1 m GRPH
TBL
•
!K(V-Window) -fwfwbwc
3(TYPE)b(Y=)v(v+c)(v-c)w
5(DRAW)
2 3(SKTCH)g(Tangnt)
3 e~ew* 1
Result Screen
1
* You can draw a tangent line in succession by
moving the " " pointer and pressing w.
5-10-2
Changing the Appearance of a Graph
x x
( + 2)( – 2).
Xmax = 5,
Ymax = 5,
-fwfwbwi
19990401
Xscale = 1
Yscale = 1