2. Thursday: Announcements
New Seating Chart Tomorrow
I will have tests graded by tomorrow.
If you missed test yesterday, then:
Today after school
Tomorrow before school 7:40

3. Radicals and Imaginary Numbers
Chapter 4
Sections 4-5 and 4-6

4. Objectives I can simplify Radicals to Lowest Terms
I can simplify negative radicals using “i”

5. Symbols
Radical symbol
Radical

6. Radical Basics
If there is no index number listed, it is assumed to be a 2 (Square Root)
The index number determines what root we are looking for

7. Method for Simplifying
Prime Factor the number under the house (radical)
Look at the value of the index number
Cross off the index number of numbers or variables to bring one out of the house.
If you don’t have enough, then they stay under the house.

8. Example 1
Simplify:
Factor the 36 36
2 9
3 3

9. Example 2
Factor the 12 12
2 3
Simplify:

10. Example 3

11. Example 3

12. Complex Numbers
Real Numbers Imaginary Numbers
Rational Irrational

13. Complex Numbers
The set of all numbers that can be written in the format: a + bi ;
“a” is the real number part
“bi’ is the imaginary part

14. The Imaginary Unit

15. Example 4

16. Example 5

17. Example 6

18. Homework
WS 6-1