1. Review 1.1 Evaluate when x = 8, y = 2, and z = 6 Find the product
Evaluate x∙x∙x for

2. Objective: Use powers to describe repeated multiplication.
Section 1.2
Objective: Use powers to describe repeated multiplication.

3. Vocabulary Power Base Exponent Exponent Base Power Factors Power
Result of repeated multiplication of the same factor
Can be written as a base and an exponent
Base
Number or variable used as a factor in repeated multiplication
Exponent
Number of times the base is used as a factor
Exponent
Base
Power
Factors
Power

4. Vocabulary Product Factor Product Factors
Answer to a multiplication problem.
Factor
A number that is multiplied by another to give a product.
7 x 8 = 56
Factors
Product

5. Identify the Base Base is exactly what exponent is sitting on top of.
base is the ( ) and everything in it.
base is only the x

6. Read and Write Powers Power Words Value41
4 to the first power 42
4 to the second power or 4 squared 43
4 to the third power or 4 cubed 44
4 to the fourth power
3b5
3 times b to the fifth power

7. Example 1
Write the product using an exponent

8. Your Turn
Write the product using an exponent

9. Example 2
Evaluate x4 when x = 0.5

10. Your Turn
Evaluate the expression when m = 3

11. Using Formulas Formula Area of a Square Volume of a Cube s s s s s
Describes a relationship between quantities
Area of a Square
Volume of a Cube s s s s s

12. Units Area Volume Square Units Cubic Units Square inches in2
Square feet ft2
Square centimeters cm2
Square meters m2
Volume
Cubic Units
Cubic inches in3
Cubic feet ft3
Cubic centimeters cm3
Cubic meters m3

13. Example 3 Find the volume of a cube with side length 20 in.
Find the area of a square with side length 9 m

14. Your turn Find the volume of a square with the given side length.
1.5 cm

15. How do you write the product using an exponent?
Concept Check 1.2
How do you write the product using an exponent?
Copy question then answer

16. Pre Alg. Classwork 1.2
Write the power in words and as repeated multiplication.
Evaluate the expression when k = 6
A box has the shape of a cube with a side length of 14 in. Find the volume.

17. Pre Alg. Classwork 1.2
Write the power in words and as repeated multiplication.
Evaluate the expression when k = 6
A box has the shape of a cube with a side length of 14 in. Find the volume.