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TI-83 Plus Activities 565
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?
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