1. Square Roots and Cube Roots
4.6

2. Perfect Squares 1 36
121 4 49
144 9 64
169 16 81
196 25
100
225

3. Square Root A square root of a number is one of its two equal factors.
Notation: radical sign is used to indicate a nonnegative square root.

4. Positive and Negative Signs

5. Find each square root

6. Estimate to the Nearest Integer
For numbers that are not perfect squares, find the two perfect square the number is between.
Graph the square root on the number line to determine which perfect square it is closest to.

7. Estimate the nearest Integer

8. Cube Roots A cube root of a number is one of its three equal factors
If then

9. Perfect Cube Roots 1
125
729 8
216
1000 27
343 64
512

10. Every Integer has exactly one cube root
The cube root of a positive number is positive
The cube root of zero is zero
The cube root of a negative number is negative

11. Find the Cube Root

12. Estimate to the nearest integer

13. Homework
Page 172 (16-38) even