Casio CFX9850GBPLUS User Manual page 190

Controlling What Appears on a Graph Screen
Example Enlarge the graphs of the two expressions shown below fi ve times on
both the x - and y -axis to see if they are tangent.
Y1 = (
Use the following V-Window settings.
Xmin = –8,
Ymin = –30, Ymax = 30,
Procedure
1 m GRAPH
!3 (V-WIN) - i w i w b w c
- da w da w f wJ
3 (TYPE)1 (Y=) ( v +e)( v +b)
6 (DRAW)
2 !2 (ZOOM)2 (FACT)f w f wJ
3 !2 (ZOOM)3 (IN)
4 f ~f ,d ~d w
Result Screen
# You can repeat factor zoom to enlarge or
reduce a graph even further.
5-2-10
x x x
+ 4)( + 1)( – 3), Y2 = 3
Xmax = 8,
( v -d) w
d v +cc w
20070201
x
+ 22
Xscale = 1
Yscale = 5