1. Do Now 9/8/10 Take out HW from last night.
Text page 7-8, #12-46
Copy HW in your homework log.
Worksheet 1.1B
In your notebook, answer the following.
If 26 = L. of the A. means 26 letters of the alphabet, how many of the following “equations” can you translate?
24 = H in a D.
90 = D. in a R.A.
18 = H. on the G.C.
8 = P. in the S.S.
1000 = W. that a P. is W.
Hours in a Day
Degrees in a Right Angle
Holes on the Golf Course
Planets in the Solar System
Words that a Picture is Worth

2. Objective
use powers to describe repeated multiplication

3. Section 1.2 “Powers and Exponents”
the result of repeated multiplication of the same factor 4
EXPONENT
shows the number of times
the base is multiplied 3
BASE
the factor (number) that
is being multiplied

4. 3 POWER 4 the result of repeated multiplication of the same factor
Repeated Multiplication (Factors) 3
EXPONENT
Words
three to the
fourth power
BASE

5. Write the product using an exponent. Then find the value.
1). 2 · 2 · 2 · 2 · 2 · 2
2). (0.2)(0.2)(0.2)
SOLUTIONS

6. Evaluate the expression.5
1. x2 when x = 8
2. k3 when k = 2.5
3. d when d = 6
SOLUTIONS
1. x2 = 82
2. k3 = 2.53
= 8 x 8
= (2.5)(2.5)(2.5)
= 64 =
Use the button on your
calculator for squares of numbers. 5 5
3. d = 6
= 6 x 6 x 6 x 6 x 6
Use the button on your
calculator for all other powers.
= 7776

7. Guided Practice
Text p. 12, #1-11 all

8. 24