Casio Algebra FX 2.0 PLUS User Manual page 223

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)
1
3 e~ew*
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