# Intermediate Algebra

This textbook is used by the Department of Mathematics at College of the Redwoods in Eureka, California for instructional purposes in their Math 120 course, Intermediate Algebra. This text was written by the department specifically for use in Math 120.

**Note**: The print book is in two parts. The order link above takes you to the first part (chapters 1-5). For the full book you also need the second part.

License:

**Creative Commons Attribution Sharealike Noncommercial**. This license is very open. It allows reuse, remixing, and distribution, but prohibits commercial use and requires any remixes use the same license as the original. This limits where the content can be remixed into, but on the other hand ensures that no-one can remix the content then put the remix under a more restrictive license. The non-commercial clause can make getting printed copies of remixes challenging depending upon how strictly the authors interpret the clause.Formats:

**PDF**. A Portable Document Format (PDF) file is can be opened using the free Acrobat Reader. It is not an editable format.

Openness Rating (0-4): 1

Openness Comments: The authors do not provide copies of the editable source files for this text, so while it is easy to use as-is, it is very difficulty to modify or remix.

- Chapter 1: Preliminaries
- Section 1: Number Systems
- Section 2: Solving Equations
- Section 3: Logic
- Section 4: Compound Inequalities
- Chapter 2: Functions
- Section 1: Introduction to Functions
- Section 2: The Graph of a Function
- Section 3: Interpreting the Graph of a Function
- Section 4: Solving Equations and Inequalities by Graphing
- Section 5: Vertical Geometric Transformations
- Section 6: Horizontal Geometric Transformations
- Chapter 3: Linear Functions
- Section 1: Linear Models
- Section 2: Slope
- Section 3: Equations of Lines
- Section 4: Point-Slope Form of a Line
- Section 5: The Line of Best Fit
- Chapter 4: Absolute Value Functions
- Section 1: Piecewise-Defined Functions
- Section 2: Absolute Value
- Section 3: Absolute Value Equations
- Section 4: Absolute Value Inequalities
- Chapter 5: Quadratic Functions
- Section 1: The Parabola
- Section 2: Vertex Form
- Section 3: Zeros of the Quadratic
- Section 4: The Quadratic Formula
- Section 5: Motion
- Section 6: Optimization
- Chapter 6: Polynomial Functions
- Section 1: Polynomial Functions
- Section 2: Zeros of Polynomials
- Section 3: Extrema and Models
- Chapter 7: Rational Functions
- Section 1: Introducing Rational Functions
- Section 2: Reducing Rational Functions
- Section 3: Graphing Rational Functions
- Section 4: Products and Quotients of Rational Functions
- Section 5: Sums and Differences of Rational Functions
- Section 6: Complex Fractions
- Section 7: Solving Rational Equations
- Section 8: Applications of Rational Functions
- Chapter 8: Exponential and Logarithmic Functions
- Section 1: Exponents and Roots
- Section 2: Exponential Functions
- Section 3: Applications of Exponential Functions
- Section 4: Inverse Functions
- Section 5: Logarithmic Functions
- Section 6: Properties of Logarithms; Solving Exponential Equations
- Section 7: Exponential Growth and Decay
- Section 8: Additional Topics
- Chapter 9: Radical Functions
- Section 1: The Square Root Function
- Section 2: Multiplication Properties of Radicals
- Section 3: Division Properties of Radicals
- Section 4: Radical Expressions
- Section 5: Radical Equations
- Section 6: The Pythagorean Theorem

Supplements: None