1. Algebra 2 Notes ~ March 11, 2009 C HAPTER 5 S ECTION 6 C OMPLEX N UMBERS

2. I MAGINARY N UMBERS  An imaginary number is defined as:  The square root of any negative number is defined as follows:  Complex Numbers are written in the form: Imaginary Part Real Part

3. G RAPHING C OMPLEX N UMBERS  The x-axis represents the “real axis”  The y-axis represents the “imaginary axis”  (3 - 4i) is graphed like (3, -4)

4. A BSOLUTE V ALUE  The absolute value of a complex number is the distance from the origin on the complex number plane  Finding absolute value:

5. H OMEWORK #38 Page 278 #1, 7, 15, 18, 20, 23, 25, 27, 29, 35, 36, 41, 45, 57, 59