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Texas Instruments TI-83 Calculator User Manual

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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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