Calculator User Manual
Activities  769
Summary
SummarySummary
Summary
Note that 
zc is zero for each of the function values in steps 7–9. Thus, the complex zeros 
1,L
i, i of the polynomial x
3
Nx
2
+xN1 can be visualized with the three points where the 
graph of the modulus surface touches the 
xy plane.
Solving a Standard Annuity Problem
Solving a Standard Annuity ProblemSolving a Standard Annuity Problem
Solving a Standard Annuity Problem
This activity can be used to find the interest rate, starting principal, number of 
compounding periods, and future value of an annuity.
10. Use the Trace tool to explore the function 
values at 
x=0 and y=L1. 










