Exponential Decay Models

Just as there are exponential growth models, there are also exponential decay models. Our penny flipping graphs show the shape of a graph of an exponential decay model. Today, we used the formula for exponential decay to determine how much of a thing would be left after a given amount of time. See Lesson 8.6 for more on the formula for exponential decay.

Tonight's Homework: Lesson 8.6 ( 10 - 21, and then choose either 27 and 28, 30, or 31 and 32 ), and the blue worksheet. Be warned--a quiz over exponents will be taken in class on Wednesday.