Casio CFX-9800G - Page 121

@To draw lines in the GRAPH or TABLE Mode
Example] To draw the graph for y=2x2-3 and then draw a line from the minimum
point on the graph to the point where x=2 and y=5:
Use the following range parameters:
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ee > [MITITRG
Activate the Plot Function, and the pointer appears flashing in the center of the ‘display.
Pointer
F3] (Plot)
Use
the
cursor
keys
to
move
the
pointer
to
the
point
where
x=2
and
.p=5.
Press
(4)(Line)
to
connect
the
two
points
with’a
line,
(F4)(Line)
Note
*You
can
switch
the
Line
Function
off.by
pressing
3)(Cls).
When
you
do,
the
graph
is
cleared
from
the
display
and
then
redrawn,
without
the
lines
you
drew,
™Graph Scroll: Function’
Immediately
after
you
have
drawn
a
graph,
you
can
scroll
it
on
the
display.
Use
the
cur-
sor
keys
to
scroll
the
graph
left,
right,
up
and
down.
The
display
is
scrolled
in
increments
of
12
dots,
with
the
display
being
redrawn
after
each
scroll
operation.
To
scroll
the
graph
on
the
display
:
To
draw
the
graph
for
y=0.25(x+2)(2x+1)(2x-5),
y=2x—3,
and
then
scroll it: ,
Use the following range parameters:
[HiT irre