Texas Instruments TI-84 User Manual
Page 485
Chapter 17: Activities
482
3.
Press
p and set
Xmin=
L
2
,
Xscl=10
,
Ymin=
L
5
, and
Yscl=10
. Ignore
Xmax
and
Ymax
; they are set by
@
X
and
@
Y
in step 4.
4.
Press
y 5 to return to the home screen. Store
1
to
@
X
, and then store
5
to
@
Y
.
@
X
and
@
Y
are on the
VARS Window X/Y
secondary menu.
@
X
and
@
Y
specify the
horizontal and vertical distance between the centers of adjacent pixels. Integer
values for
@
X
and
@
Y
produce nice values for tracing.
5.
Press
r to plot the function. At what speed does the ticket exceed 250?