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Solutions A Answers to Selected Exercises and Homework Problems
Subsection Skills Warm-Up
Exercises Homework 1.1
9.
11.
15.
17.
Section 1.2 Algebraic Expressions
Exercises Homework 1.2
19.
21.
Section 1.3 Equations and Graphs
Section 1.4 Solving Equations
Exercises Homework 1.4
3.
Section 1.5 Order of Operations
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
Exercises Homework 2.1
5.
15.
23.
31.
Section 2.2 Expressions and Equations
Exercises Homework 2.2
1.
3.
9.
15.
16.
23.
27.
Section 2.3 Graphs of Linear Equations
Exercises Homework 2.3
9.
Section 2.4 Linear Equations and Inequalities
Exercises Homework 2.4
3.
5.
7.
9.
11.
13.
15.
17.
29.
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
Exercises Homework 3.1
19.
23.
Section 3.2 Ratio and Proportion
Subsection Skills Warm-Up
Exercises Homework 3.2
5.
25.
27.
29.
31.
Exercises Homework 3.3
11.
13.
15.
19.
23.
25.
Section 3.4 Slope-Intercept Form
Exercises Homework 3.4
21.
Section 3.5 Properties of Lines
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
Exercises Homework 4.1
7.
21.
23.
25.
27.
31.
33.
35.
Section 4.2 Systems of Linear Equations
Exercises Homework 4.2
13.
Section 4.3 Algebraic Solution of Systems
Section 4.4 Problem Solving with Systems
Subsection Interest
Warm-Up 4.1.
Warm-Up 4.2.
Subsection Mixtures
Warm-Up 4.3.
Warm-Up 4.4.
Subsection Skills Warm-Up
Section 4.5 Point-Slope Formula
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
Exercises Homework 5.1
3.
7.
33.
41.
Section 5.2 Square Roots and Cube Roots
Exercises Homework 5.2
13.
25.
27.
Section 5.3 Using Formulas
Section 5.4 Products of Binomials
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
Exercises Homework 6.1
1.
25.
Section 6.2 Some Quadratic Models
Exercises Homework 6.2
25.
27.
29.
Section 6.3 Solving Quadratic Equations by Factoring
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
Exercises Homework 6.5
13.
Section 6.6 Chapter 6 Summary and Review
Subsection Review Problems
Exercises Exercises
7.
35.
37.
39.
Exercises Homework 7.1
1.
5.
21.
23.
25.
27.
29.
31.
Section 7.2 Products of Polynomials
Exercises Homework 7.2
1.
3.
31.
33.
35.
Section 7.3 More About Factoring
Exercises Homework 7.3
1.
35.
Section 7.4 Special Products and Factors
Exercises Homework 7.4
1.
41.
43.
45.
Section 7.5 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
Exercises Homework 8.1
3.
47.
Section 8.2 Operations on Fractions
Exercises Homework 8.2
13.
47.
49.
Section 8.3 Lowest Common Denominator
Section 8.4 Equations with Fractions
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
Section 9.1 Laws of Exponents
Exercises Homework 9.1
1.
3.
5.
Section 9.2 Negative Exponents and Scientific Notation
Exercises Homework 9.2
5.
7.
9.
17.
29.
Section 9.3 Properties of Radicals
Section 9.4 Operations on Radicals
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.
