# Algebra I Homeschool Assignment Answer Keys

Instructor: Sujin Shin
This lesson contains the answer keys for the following lessons: Matrices & Absolute Values: Homeschool Assignments; Exponents & Polynomials: Homeschool Assignment; Factoring, Graphing Parabolas & Solving Quadratics: Homeschool Assignments.

### Matrices & Absolute Value Answer Key

1. 11

2. 38

3. x = 3, -10

4. x = 5, 1

5. (-7,0)

6. y = |x - 3| - 4

7. y = 1/2 |x - 2| + 4

8. y = 4 |x - 4| + 1

### Exponents & Polynomials Answer Key

1. 3ab3c2

2. x3/125

3. 3pq4/3

4. The graph is either cubic or quintic.

5. 4x4 - 3x3 - 3x2 - 2x + 4

6. 3x2 - 4x + 8

7. -2x4 + 2x3 - 8x2 + 4x - 1 + 3 / (x + 4)

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