GE JS630SFSS Owner's Manual

Chapter 17: Activities

 324

2. Press 

Œ Í Í to display the 

. Enter these values.

 Enter a positive number (

) to show 

 as a cash inflow. Payment values will be 

displayed as positive numbers on the graph. Enter 

 for 

, since the future value of a loan is 0 

once it is paid in full. Enter 

, since payment is due at the end of a period.

3. Move the cursor onto the 

 prompt, and then press 

ƒ \. The present value, or 

mortgage amount, of the house is displayed at the 

 prompt.

Now compare the graph of the amount of interest with the graph of the amount of principal for each 
payment.

4. Press 

z. Set 

 and 

.

5. Press 

o. Turn off all functions and stat plots. Enter these equations and set the graph styles 

as shown.

 G

 and G

 are located on the 

menu (

).

6. Press 

p. Set these window variables.

 To increase the graph speed, change 

 to 

.

7. Press 

r. After the graph is drawn, press 

 

Í to move the trace cursor to 

, 

which is equivalent to 20 years of payments.