### Home > CALC > Chapter 6 > Lesson 6.4.2 > Problem6-140

6-140.

We are given a value function, V(t). Notice that t = years since 1991. Evaluate for the year 2000.

Value = V(t) = 461,100(1.12)t

Examine the equation above:

What is the annual interest rate?

What is the initial value of the card?

Unlike average value (AROC), actual value (IROC) must be found with a derivative.