Texas Instruments TI-84 Plus Guide Book

Chapter 17: Activities 512
The graph shows that for the 240th payment (X=240), 358.03 of the 800 payment is
applied to principal (
Y=358.03).
Note: The sum of the payments (Y3T=Y1T+Y2T) is always 800.
8. Press † to move the cursor onto the function for interest defined by
X2T and Y2T.
Enter
240.
The graph shows that for the 240th payment (
X=240), 441.97 of the 800 payment is
interest (
Y=441.97).
9. Press y 5 Œ Í
9 to paste 9:bal( to the home screen. Check the figures
from the graph.

Texas Instruments TI-84 Plus Specifications

General

Battery type	AAA
Power source	Battery
Number of batteries supported	4
Type	Graphing
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
USB port	Yes
USB 2.0 ports quantity	1
Digits	- digits
Display number of lines	8 lines
Display number of characters	16
RAM capacity	0.024 MB
ROM capacity	0.480 MB
Storage media type	-