Texas Instruments TI-84 - Manual (Page 514)

Chapter 17: Activities 511
Now compare the graph of the amount of interest with the graph of the amount of
principal for each payment.
4. Press
z. Set
Par and Simul .
5. Press
o. Turn off all functions and stat plots. Enter these equations and set the
graph styles as shown.
Note: G Prn( and G Int( are located on the FINANCE menu ( APPS 1:FINANCE ).
6. Press
p. Set these window variables.
Note: To increase the graph speed, change Tstep to 24 .
7. Press
r. After the graph is drawn, press
240
Í to move the trace cursor to
T=240 , which is equivalent to 20 years of payments.
Tmin=1
Tmax=360
Tstep=12 Xmin=0
Xmax=360
Xscl=10 Ymin=0
Ymax=1000
Yscl=100