1. Week 7 Warm Up 04.30.12 solve when x = 3 x3 - 2 a) 5 b) -5 c) ±5 d) 251)
x3 - 2
a) b) c) ± d) 25

2. I will graph radical functions.
Section 12.1 Day 1
I will graph radical functions.
Rule 1
No negative under the radical.
Ex 1

3. Ex 1 x y 1 2 3 4 1
1.4 • • • •
1.7 • 2

4. Ex 1 x y 1 2 3 4 1
1.4
1.7 2

5. Ex 2 x y 1 2 3 4 2 • • •
2.83 •
3.46 • 4

6. Ex 2 x y 1 2 3 4 2
2.83
3.46 4

7. Check 1: x y 1 2 3 4 4
5.66
6.93 8

8. Ex 3 x y 1 2 3 4 3 • 4 • • • •
4.41
4.73 5

9. Ex 3 x y 1 2 3 4 3 4
4.41
4.73 5

10. Check 2: x y 1 2 3 4 -2 -1
-.59
-.27

11. Rule 2
Start with what makes under the radical 0.
Ex 4 x y 2 3 4 5 6 1
1.41 • • • •
1.73 • 2

12. Ex 4 x y 1 2 3 4 1
1.41
1.73 2

13. Check 3:
Assignment
Handout – Section 12.1 Day 1