1. Do Now Rhonda hears a rumor at 8:00 A.M. She immediately tells her two best friends the rumor. One hour later Rhonda’s friends have each told two of their friends. This pattern continues each hour, with each friend reporting the rumor to two friends who have not already heard it. By 8:00 P.M. that evening, how many people have heard the rumor? Answer: 8191

2. Chapter 8 Section 1 Exponential Growth Mr. Ochoa Algebra II

3. Vocabulary Exponential Function- Base- Asymptote- Exponential Growth Function- Growth Factor-

4. Examples Objective - To graph exponential functions and to model them in real-life situations.

5. Graph

6. y-intercept =1 asymptote = x-axis domain:all real numbers range:y > 0

7. Graph

8. y-intercept =0.25 asymptote = x-axis domain: range:y > 0 all real numbers

9. Graph

10. y-intercept =1 asymptote y = -1 domain: range:y > -1 all real numbers

11. In 2005 the average price of a car was $15,000. If the price increases 8% a year, what will the average price be in 10 years?

13. You deposit $50,000 in an investment account that pays 6% annual interest. Find the balance after 2 years if the interest is compounded quarterly ? P = 50,000, r = 0.06 n = 4, t = 2