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Texas Instruments TI-84 User Manual

Page 404

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Chapter 14: Applications

401

2.

Press

Î Œ Н Н to display the TVM Solver.

3.

Press

360

to enter number of payments. Press

† 8 to

enter the interest rate. Press

† † Ì

800

to enter the

payment amount. Press

0

to enter the future value

of the mortgage. Press

12

to enter the payments per

year, which also sets the compounding periods per
year to 12. Press

† † Í to select

PMT:END

.

4.

Press

} } } } } to place the cursor on the

PV

prompt.

Press

ƒ \ to solve for the present value.

5.

Press

o to display the parametric Y= editor. Turn off

all stat plots. Press

„ to define

X1T

as

T

. Press

Œ Í

9

„ ¤ to define

Y1T

as

bal(T)

.

6.

Press

p to display the window variables. Enter the

values below.

Tmin=0

Xmin=0

Ymin=0

Tmax=360

Xmax=360

Ymax=125000

Tstep=12

Xscl=50

Yscl=10000

7.

Press

r to draw the graph and activate the trace

cursor. Press

~ and | to explore the graph of the

outstanding balance over time. Press a number and
then press

Í to view the balance at a specific

time T.