Bell Work

1
Bell Work

• Do Pink TAKS book question numbers 39 41 on a
  separate sheet of paper. Explain how you got
  your answer and be specific.

2
Zero and Negative Exponents

• By David Lambert, Hudson High School

3
I. Zero Exponent

• What is ANTHING raised to a zero power?
• Answer 1
• Example
• A. 60 1
• B. -3,496.20 ?

4
Negative Exponents

• Examples
• 6-2 1
• 62
• b-3 1
• b3
• 4-5

5
Negative Exponents

• Examples
• 6-2 1
• 62
• b-3 1
• b3
• 4-5 1 .0009765625
• 45

• Examples
• 1/n3 n-3
• 1 84
• 8-4
• 1/x7 ?

6
Negative Exponents

• Examples
• 6-2 1
• 62
• b-3 1
• b3
• 4-5 1 .0009765625
• 45

• Examples
• 1/n3 n-3
• 1 84
• 8-4
• 1/x7 x-7
• mn-2 ?

7
Negative Exponents

• Examples
• 6-2 1
• 62
• b-3 1
• b3
• 4-5 1 .0009765625
• 45

• Examples
• 1/n3 n-3
• 1_ 8-4
• 84
• 1/x7 x-7
• mn-2 m
• n2

8
II. Negative Exponents

• What pattern do you see?

9
II. Negative Exponents

• Apply your rule to the following does it still
  work?
• 1 43 64
• 4-3
• _1_ v2
• qv-2 q
• g4h-2
• c-5d

10
II. Negative Exponents

• Apply your rule to the following does it still
  work?
• 1 43 64
• 4-3
• _1_ v2
• qv-2 q
• g4h-2 g4c5
• c-5d h2d

11
Practice

• (qz)-9
• 5-4
• 8-6
• 1/y3
• a-2c
• -40
• rs2/d-4
• g-10k-3z21
• Bonus 5y0
• p0

12
III. Rewrite each expression so all exponents
are positive

• -3x-1y

13
III. Rewrite each expression so all exponents
are positive

• -3x-1y -3y
• x
• 6ab-2

14
III. Rewrite each expression so all exponents
are positive

• -3x-1y -3y
• x
• 6ab-2 6a
• b2
• 5-2ab5c-2
• d2e19f-1g-7

15
III. Rewrite each expression so all exponents
are positive

• -3x-1y -3y
• x
• 6ab-2 6a
• b2
• 5-2ab5c-2
• d2e19f-1g-7

ab5fg7 52c2d2e19
16
Another quick presentation

• http//www.purplemath.com/modules/exponent2.htm
• Summary and questions

17
Activity

• Balderdash

18
In class practice homework

• In class - workbook page 131, 2-30 even
• Homework page 132, s 14, 22, 34, 38, 50