- Notes:
- 4/25 4/27

## 4/25- I. Sketch
- 1. y = (x + 3)
^{2}(x - 1)(x + 4) - 2. y = (x
^{2}+ 4)(x - 1) - 3. y = (x + 1)/x Answers
- 4. y = x/(x + 1), never reviewed in class
- II. Vocabulary:
- As humans have solved new problems, equations, they have needed to create more numbers. Review briefly the sets of numbers. Start with the essay: Imaginary Numbers Are Not Imaginary. and through it review the sets of numbers.
- COMPLEX NUMBER -- solves all ax² + bx + c = 0
- a + bi, where a is not 0, b is not 0, where i² = -1
- a + bi, where a is 0, b is not 0, where i² = -1 -- These are pure
- IMAGINARY
- a + bi, where a is not 0, b is 0, where i² = -1 -- These are pure
- REAL NUMBER -- solves x² - 4 = 0
- IRRATIONAL -- solves x² = 3
- RATIONAL -- solves 4x = 3, x² = 4
- INTEGER -- solves x + 4 = 3
- WHOLE NUMBER -- solves x + 4 = 4
- NATURAL NUMBER
- -- solves x + 4 = 6
- IV. More vocabulary
- end behavior
## 4/27- I. Vocabulary: polynomial
- linear -- 1st degree equation, line
- quadratic -- 2nd degree equation
- II. Polynomial & Rational Functions are dialations of
- linear and quadratic functions.
- We reviewed rational functions through this page.
- Additional vocabulary:
- asymptote
- end behavior
- Two quizzes on Tuesday the 2nd: graphing ch 3, solving ch 3,
- Test on the 4th on ch 3.
Answer - 4/25/00 Answers
- 1.
- 2.
- 3.
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