EL-9900 Graphing Calculator

Step & Key Operation

Display

Notes

1-4Enter the values L=15,000, I=0.09, N=48.

ENTER 1 5 0 0 0

ENTER 0 9 ENTER 4

8 ENTER

1-5Solve for the payment(P).

2nd F EXE

( CL )

2-1Save this formula.

2nd F SOLVER C ENTER

2-2Give the formula the name AMORT.

A M O R T ENTER

3-1Recall the amortization formula.

2nd F

 

SOLVER

 

B

0

1

 

 

3-2Enter the values: P = 300, I = 0.01, N = 60

ENTER 3 0 0 ENTER 0 ENTER

0 1 ENTER 6 0 ENTER

3-3Solve for the loan (L).

2nd F EXE

The monthly payment (P) is $373.28.

The amount of loan (L) is $17550.28.

With the Equation Editor, the EL-9900 displays equations, even complicated ones, as they appear in the textbook in easy to understand format. Also it is easy to find the solution for unknown variables by recalling a stored equation and giving values to the known variables in the Solver mode when using the Advanced keyboard.

5-1

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Sharp EL9900 manual 4Enter the values L=15,000, I=0.09, N=48