1. Square Root
Chapter 9

2. Warm-up Solve the equations below : (4) 8r – 7 = 3r + 23
(1) 4 m – 3 = m + 15
r = 6
m = 6
(2) 6y – 2 = 2y + 18
(5) 10 w – 9 = 3w + 33
y = 5
w = 6
(3) 6t + 3 = 3t + 15
(6) 9f + 14 = 3f + 56
f = 7
t = 4

4. Perfect Squares 64 81
100
121
144
169
196
225
256
324
400
625
289 1 4 9 16 25 36 49

5. Simplify
= 2
= 4
= 5
= 10
= 12

6. Examples

7. Squares table

8. Practice 13 20 ⅓ 30
0.5
6/7
-1.1
1.4
0.6
-12
5/4
±.1

9. Solving square roots

10. Practice
t = ± 5
n = 0
g = undefined
x =0
t = ± 3

11. Classwork