Advanced Algebra II

Thursday, January 08, 2009
Objective: The student will:
Students investigate polynomials. Work with imaginary numbers
Continue working with practiced skills and concepts
Agenda:
1. Write up due tomorrow.
2. Homework questions?
3. Imaginary numbers practice.

Homework : 9-72 through 80, 9-88,89,91,92,93, 96, 98
9-9 Functions in parts (a), (b), and (e) are polynomial functions; explanations vary.
9-14. a: ; b:

9-16. a: , b:

9-18. The functions in parts (a), (b), (d), (e), (h), (i), and (j) are polynomial functions.
9-23. for ;
graph shown at right

9-24. circle of radius 5,
centered at origin,
with its interior shaded




9-39. at (74, 0), a double root, and at (–29, 0)
9-44. a: , b:
9-57. a: degree 4, , , , ,
b: degree 3, , , ,
c: degree 2, , ,
d: degree 3, , , ,
e: degree 1,
f: degree 0,
9-61. a: C: (3, 7), r: 5; b: C: (0, –5), r: 4; c: C: (–9, 4), r: ; d: C: (3, 0), r: 1
9-62. a: , b: 242, c: 4, d: 7