1. Warm up In 1991 the population of Humpback whales was 5263. The Humpback population decreases at an annual rate of 1.5%. What is the exponential equation modeling this decay? What will the Humpback population be in 2012?

2. Warm up Answer

3. Rational Exponents and Roots

4. Remember: What is the difference between a Power function and an Exponential function? Power has variable in the base and exponential has variable in the exponent. (you need to know this for #1 on the homework)

5. Definition of Rational Exponents

6. So….

7. Example 1

8. Solution

9. Example 2: You try!

10. Answer: 352.33

11. Example 3: what if there is a coefficient?

12. Answer

13. Remember from way back when…

14. Example 4

15. Answer

16. Homework 5.3 Worksheet 1 all 2 a-c 3 a-f 4 a-c