Elementary Algebra Appendix
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Solutions A Appendix
Subsection Skills Warm-Up
¶
Exercises Homework 1.1
9.
11.
15.
17.
Section 1.2 Algebraic Expressions
¶
Subsection Skills Warm-Up
¶
Exercises Homework 1.2
19.
21.
Section 1.3 Equations and Graphs
¶
Subsection Skills Warm-Up
¶
Exercises Exercises
3.
4.
5.
6.
Section 1.4 Solving Equations
¶
Subsection Skills Warm-Up
¶
Exercises Homework 1.4
3.
Section 1.5 Order of Operations
¶
Subsection Skills Warm-Up
¶
Exercises Homework 1.5
31.
33.
39.
Section 1.6 Chapter 1 Summary and Review
¶
Subsection Review Problems
Exercises Exercises
1.
3.
13.
15.
17.
19.
21.
51.
Chapter 2 Linear Equations
¶
Section 2.1 Signed Numbers
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Subsection Skills Warm-Up
¶
Exercises Exercises
1.
2.
Exercises Homework 2.1
5.
15.
23.
31.
Section 2.2 Expressions and Equations
¶
Subsection Skills Warm-Up
¶
Exercises Homework 2.2
1.
3.
9.
15.
16.
23.
27.
Section 2.3 Graphs of Linear Equations
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Subsection Skills Warm-Up
¶
Exercises Homework 2.3
9.
Section 2.4 Linear Equations and Inequalities
¶
Subsection Skills Warm-Up
¶
Exercises Homework 2.4
3.
5.
7.
9.
11.
13.
15.
17.
29.
Subsection Skills Warm-Up
¶
Exercises Homework 2.5
19.
Section 2.6 Chapter 2 Summary and Review
¶
Subsection Review Problems
Exercises Exercises
15.
33.
35.
37.
43.
57.
Chapter 3 Graphs of Linear Equations
¶
Subsection Skills Warm-Up
¶
Exercises Homework 3.1
19.
23.
Section 3.2 Ratio and Proportion
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Subsection Skills Warm-Up
¶
Exercises Homework 3.2
5.
25.
27.
29.
31.
Subsection Skills Warm-Up
¶
Exercises Homework 3.3
11.
13.
15.
19.
23.
25.
Section 3.4 Slope-Intercept Form
¶
Subsection Skills Warm-Up
¶
Exercises Homework 3.4
21.
Section 3.5 Properties of Lines
¶
Subsection Skills Warm-Up
¶
Exercises Homework 3.5
31.
Section 3.6 Chapter 3 Summary and Review
¶
Subsection Review Problems
Exercises Exercises
3.
19.
31.
33.
43.
Chapter 4 Applications of Linear Equations
¶
Section 4.1 The Distributive Law
¶
Subsection Skills Warm-Up
¶
Exercises Homework 4.1
7.
21.
23.
25.
27.
31.
33.
35.
Section 4.2 Systems of Linear Equations
¶
Subsection Skills Warm-Up
¶
Exercises Homework 4.2
13.
Section 4.3 Algebraic Solution of Systems
¶
Subsection Skills Warm-Up
¶
Section 4.4 Problem Solving with Systems
¶
Subsection Skills Warm-Up
¶
Section 4.5 Point-Slope Formula
¶
Subsection Skills Warm-Up
¶
Exercises Homework 4.5
17.
19.
Section 4.6 Chapter 4 Summary and Review
¶
Subsection Review Problems
Exercises Exercises
11.
13.
43.
44.
47.
51.
53.
Chapter 5 Exponents and Roots
¶
Subsection Skills Warm-Up
¶
Exercises Homework 5.1
3.
7.
33.
41.
Section 5.2 Square Roots and Cube Roots
¶
Subsection Skills Warm-Up
¶
Exercises Homework 5.2
13.
25.
27.
Section 5.3 Using Formulas
¶
Subsection Skills Warm-Up
¶
Exercises Exercises
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Section 5.4 Products of Binomials
¶
Subsection Skills Warm-Up
¶
Exercises Homework 5.4
41.
45.
Section 5.5 Chapter 5 Summary and Review
¶
Subsection Review Problems
Exercises Exercises
27.
77.
Chapter 6 Quadratic Equations
¶
Section 6.1 Extracting Roots
¶
Subsection Skills Warm-Up
¶
Exercises Homework 6.1
1.
25.
Section 6.2 Some Quadratic Models
¶
Subsection Skills Warm-Up
¶
Exercises Homework 6.2
25.
27.
29.
Section 6.3 Solving Quadratic Equations by Factoring
¶
Subsection Skills Warm-Up
¶
Exercises Homework 6.3
33.
37.
Section 6.4 Graphing Quadratic Equations
¶
Subsection Skills Warm-Up
¶
Exercises Homework 6.4
15.
17.
Section 6.5 The Quadratic Formula
¶
Subsection Skills Warm-Up
¶
Exercises Homework 6.5
13.
Section 6.6 Chapter 6 Summary and Review
¶
Subsection Review Problems
Exercises Exercises
7.
35.
37.
39.
Section 7.1 Polynomials
¶
Subsection Skills Warm-Up
¶
Exercises Homework 7.1
1.
5.
21.
23.
25.
27.
29.
31.
Section 7.2 Products of Polynomials
¶
Subsection Skills Warm-Up
¶
Exercises Homework 7.2
1.
3.
31.
33.
35.
Section 7.3 More About Factoring
¶
Subsection Skills Warm-Up
¶
Exercises Homework 7.3
1.
35.
Section 7.4 Optional Extension
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Section 7.5 Special Products and Factors
¶
Subsection Skills Warm-Up
¶
Exercises Homework 7.4
1.
41.
43.
45.
Section 7.6 Chapter 7 Summary and Review
¶
Subsection Review Problems
Exercises Exercises
1.
9.
11.
49.
51.
75.
77.
79.
81.
83.
85.
87.
89.
Chapter 8 Algebraic Fractions
¶
Section 8.1 Algebraic Fractions
¶
Subsection Skills Warm-Up
¶
Exercises Homework 8.1
3.
47.
Section 8.2 Operations on Fractions
¶
Subsection Skills Warm-Up
¶
Exercises Exercises
7.
8.
Exercises Homework 8.2
13.
47.
49.
Section 8.3 Lowest Common Denominator
¶
Subsection Skills Warm-Up
¶
Section 8.4 Equations with Fractions
¶
Subsection Skills Warm-Up
¶
Exercises Homework 8.4
21.
23.
29.
Section 8.5 Chapter 8 Summary and Review
¶
Subsection Review Problems
Exercises Exercises
1.
23.
Chapter 9 More About Exponents and Roots
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Section 9.1 Laws of Exponents
¶
Subsection Skills Warm-Up
¶
Exercises Homework 9.1
1.
3.
5.
Section 9.2 Negative Exponents and Scientific Notation
¶
Subsection Skills Warm-Up
¶
Exercises Homework 9.2
5.
7.
9.
17.
29.
Section 9.3 Properties of Radicals
¶
Subsection Skills Warm-Up
¶
Section 9.4 Operations on Radicals
¶
Subsection Skills Warm-Up
¶
Exercises Homework 9.4
29.
Section 9.5 Equations with Radicals
¶
Subsection Skills Warm-Up
¶
Exercises Homework 9.5
7.
21.
23.
25.
Section 9.6 Chapter 9 Summary and Review
¶
Subsection Review Problems
Exercises Exercises
29.
73.
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