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.

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Presentation transcript:

Warm up In 1991 the population of Humpback whales was 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?

Warm up Answer

Rational Exponents and Roots

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)

Definition of Rational Exponents

So….

Example 1

Solution

Example 2: You try!

Answer:

Example 3: what if there is a coefficient?

Answer

Remember from way back when…

Example 4

Answer

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