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# Do Now 2/1/10 - PowerPoint PPT Presentation

Do Now 2/1/10. Copy HW in your planner. Text p. 492, #10-48 evens In your notebook, complete the “Investigating Algebra” Activity on page 488 in the text. Copy and complete both tables and then answer the Draw Conclusions problems #1-8. You will have 10 minutes to finish. Chapter 8.

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Presentation Transcript

• Copy HW in your planner.

• Text p. 492, #10-48 evens

• In your notebook, complete the “Investigating Algebra” Activity on page 488 in the text. Copy and complete both tables and then answer the Draw Conclusions problems #1-8. You will have 10 minutes to finish.

“Exponents and Exponential Functions”

• (8.1) Exponents involving products

• (8.2) Exponents involving quotients

• (8.3) Zero and negative exponents

• (8.4) Scientific notation

• SWBAT use properties of exponents involving products

POWER

an expression that represents repeated multiplication.

4

Product

2

EXPONENT

Words

two to the

fourth power

BASE

3. d4 whend =

1

1

1

1

1

4

( )

1

3. d4 =

3

3

3

3

3

3

=8 8 8

=

1

=

81

GUIDED PRACTICE

REVIEW

Evaluate the expression.

1. x3 whenx = 8

2. k3 whenk = 2.5

SOLUTIONS

1. x3 = 83

2. k3 =2.53

= (2.5)(2.5)(2.5)

= 15.625

= 512

Section 8.1, “Apply Exponent Properties Involving Products”

• (1) Product of Powers Property

• (2) Power of a Power Property

• (3) Power of a Product Property

• (1) Product of Powers Property

• (2) Power of a Power Property

• (3) Power of a Product Property

the power of 10 nearest to the quantity

There are about 91,000 species of insect in the United States. What is the order of magnitude of the amount of insects in the United States?

**HINT**

Think of the order of magnitude as rounding to the closest power of 10.

The power of 10 closest to 91,000 is 100,000 or 10 to the 5th power.

• Use All Three Properties

• Challenge

2) power

3) 100

4) 27

5) 25/36

6) 1/8

7) 6.01, 6.12, 6.2

8) 0.0098, 0.073, 0.101

9) 0.04

10) 0.005

11) 0.138

12) 1.45

13) f(x) = x + 2

HomeworkPrerequisite Skills Text p. 486, #1-13 all