College Algebra
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1.1 Introduction
1.1.1 An Introduction to Algebra
1.1.2 The Top Ten List of Mistakes
1.2 Inequalities
1.2.1 Concepts of Inequality
1.2.2 Inequalities and Interval Notation
1.3 Absolute Value
1.3.1 Properties of Absolute Value
1.3.2 Evaluating Absolute Value Expressions
1.4 Exponents
1.4.1 An Introduction to Exponents
1.4.2 Evaluating Exponential Expressions
1.4.3 Applying the Rules of Exponents
1.4.4 Evaluating Expressions with Negative Exponents
1.5 Converting between Notations
1.5.1 Converting between Decimal and Scientific Notation
1.5.2 Converting Rational Exponents and Radicals
1.6 Radical Expressions
1.6.1 Simplifying Radical Expressions
1.6.2 Simplifying Radical Expressions with Variables
1.6.3 Rationalizing Denominators
1.7 Polynomial Expressions
1.7.1 Determining Components and Degree
1.7.2 Adding, Subtracting, and Multiplying Polynomials
1.7.3 Multiplying Big Products
1.7.4 Using Special Products
1.8 Factoring
1.8.1 Factoring Using the Greatest Common Factor
1.8.2 Factoring by Grouping
1.8.3 Factoring Trinomials Completely
1.9 Factoring Patterns
1.9.1 Factoring Perfect Square Trinomials
1.9.2 Factoring the Difference of Two Squares
1.9.3 Factoring Sums and Differences of Cubes
1.9.4 Factoring by Any Method
1.10 Rational Expressions
1.10.1 Rational Expressions and Domain
1.10.2 Working with Fractions
1.10.3 Writing Rational Expressions in Lowest Terms
1.11 Working with Rationals
1.11.1 Multiplying and Dividing Rational Expressions
1.11.2 Adding and Subtracting Rational Expressions
1.11.3 Rewriting Complex Fractions
1.12 Complex Numbers
1.12.1 Introducing and Writing Complex Numbers
1.12.2 Rewriting Powers of i
1.12.3 Adding and Subtracting Complex Numbers
1.12.4 Multiplying Complex Numbers
1.12.5 Dividing Complex Numbers
2.1 Linear Equations
2.1.1 An Introduction to Solving Equations
2.1.2 Solving a Linear Equation
2.1.3 Solving a Linear Equation with Rationals
2.1.4 Solving a Linear Equation That Has Restrictions
2.2 Word Problems with Linear Equations: Math Topics
2.2.1 An Introduction to Solving Word Problems
2.2.2 Solving for Perimeter
2.2.3 Solving a Linear Geometry Problem
2.2.4 Solving for Consecutive Numbers
2.2.5 Solving to Find the Average
2.3 Word Problems with Linear Equations: Applications
2.3.1 Solving for Constant Velocity
2.3.2 Solving a Problem about Work
2.3.3 Solving a Mixture Problem
2.3.4 Solving an Investment Problem
2.3.5 Solving Business Problems
2.4 Quadratic Equations: Some Solution Techniques
2.4.1 Solving Quadratics by Factoring
2.4.2 Solving Quadratics by Completing the Square
2.4.3 Completing the Square: Another Example
2.5 Quadratic Equations and the Quadratic Formula
2.5.1 Proving the Quadratic Formula
2.5.2 Using the Quadratic Formula
2.5.3 Predicting the Type of Solutions Using the Discriminant
2.6 Quadratic Equations: Special Topics
2.6.1 Solving for a Squared Variable
2.6.2 Finding Real Number Restrictions
2.6.3 Solving Fancy Quadratics
2.7 Word Problems with Quadratics: Math Topics
2.7.1 An Introduction to Word Problems with Quadratics
2.7.2 Solving a Quadratic Geometry Problem
2.7.3 Solving with the Pythagorean Theorem
2.8 Word Problems with Quadratics: Applications
2.8.1 Solving a Motion Problem
2.8.2 Solving a Projectile Problem
2.8.3 Solving Other Problems
2.9 Radical Equations
2.9.1 Determining Extraneous Roots
2.9.2 Solving an Equation Containing a Radical
2.9.3 Solving an Equation with Two Radicals
2.9.4 Solving an Equation with Rational Exponents
2.10 Variation
2.10.1 An Introduction to Variation
2.10.2 Direct Proportion
2.10.3 Inverse Proportion
2.11 Solving Inequalities
2.11.1 An Introduction to Solving Inequalities
2.11.2 Solving Compound Inequalities
2.11.3 More on Compound Inequalities
2.11.4 Solving Word Problems Involving Inequalities
2.12 Inequalities: Quadratics
2.12.1 Solving Quadratic Inequalities
2.12.2 Solving Quadratic Inequalities: Another Example
2.13 Inequalities: Rationals and Radicals
2.13.1 Solving Rational Inequalities
2.13.2 Solving Rational Inequalities: Another Example
2.13.3 Determining the Domains of Expressions with Radicals
2.14 Absolute Value
2.14.1 Matching Number Lines with Absolute Values
2.14.2 Solving Absolute Value Equations
2.14.3 Solving Equations with Two Absolute Value Expressions
2.14.4 Solving Absolute Value Inequalities
2.14.5 Solving Absolute Value Inequalities: More Examples
3.1 Graphing Basics
3.1.1 Using the Cartesian System
3.1.2 Thinking Visually
3.2 Relationships between Two Points
3.2.1 Finding the Distance between Two Points
3.2.2 Finding the Second Endpoint of a Segment
3.3 Relationships among Three Points
3.3.1 Collinearity and Distance
3.3.2 Triangles
3.4 Circles
3.4.1 Finding the Center-Radius Form of the Equation of a Circle
3.4.2 Finding the Center and Radius of a Circle
3.4.3 Decoding the Circle Formula
3.4.4 Solving Word Problems Involving Circles
3.5 Graphing Equations
3.5.1 Graphing Equations by Locating Points
3.5.2 Finding the x- and y-Intercepts of an Equation
3.6 Function Basics
3.6.1 Functions and the Vertical Line Test
3.6.2 Identifying Functions
3.6.3 Function Notation and Finding Function Values
3.7 Working with Functions
3.7.1 Determining Intervals Over Which a Function Is Increasing
3.7.2 Evaluating Piecewise-Defined Functions for Given Values
3.7.3 Solving Word Problems Involving Functions
3.8 Function Domain and Range
3.8.1 Finding the Domain and Range of a Function
3.8.2 Domain and Range: One Explicit Example
3.8.3 Satisfying the Domain of a Function
3.9 Linear Functions: Slope
3.9.1 An Introduction to Slope
3.9.2 Finding the Slope of a Line Given Two Points
3.9.3 Interpreting Slope from a Graph
3.9.4 Graphing a Line Using Point and Slope
3.10 Equations of a Line
3.10.1 Writing an Equation in Slope-Intercept Form
3.10.2 Writing an Equation Given Two Points
3.10.3 Writing an Equation in Point-Slope Form
3.10.4 Matching a Slope-Intercept Equation with Its Graph
3.10.5 Slope with Parallel and Perpendicular Lines
3.11 Linear Functions: Applications
3.11.1 Constructing Linear Function Models of a Set of Data
3.11.2 Linear Cost and Revenue Functions
3.12 Graphing Functions
3.12.1 Graphing Some Important Functions
3.12.2 Graphing Piecewise-Defined Functions
3.12.3 Matching Equations with Their Graphs
3.13 The Greatest Integer Function
3.13.1 The Greatest Integer Function
3.13.2 Graphing the Greatest Integer Function
3.14 Composite Functions
3.14.1 Using Operations on Functions
3.14.2 Composite Functions
3.14.3 Components of Composite Functions
3.14.4 Finding Functions That Form a Given Composite
3.14.5 Finding the Difference Quotient of a Function
3.15 Quadratic Functions: Basics
3.15.1 Deconstructing the Graph of a Quadratic Function
3.15.2 Nice-Looking Parabolas
3.15.3 Using Discriminants to Graph Parabolas
3.15.4 Maximum Height in the Real World
3.16 Quadratic Functions: The Vertex
3.16.1 Finding the Vertex by Completing the Square
3.16.2 Using the Vertex to Write the Quadratic Equation
3.16.3 Finding the Maximum or Minimum of a Quadratic
3.16.4 Graphing Parabolas
3.17 Manipulating Graphs: Shifts and Stretches
3.17.1 Shifting Curves along Axes
3.17.2 Shifting or Translating Curves along Axes
3.17.3 Stretching a Graph
3.17.4 Graphing Quadratics Using Patterns
3.18 Manipulating Graphs: Symmetry and Reflections
3.18.1 Determining Symmetry
3.18.2 Reflections
3.18.3 Reflecting Specific Functions
4.1 Polynomials: Long Division
4.1.1 Using Long Division with Polynomials
4.1.2 Long Division: Another Example
4.2 Polynomials: Synthetic Division
4.2.1 Using Synthetic Division with Polynomials
4.2.2 More Synthetic Division
4.3 The Remainder Theorem
4.3.1 The Remainder Theorem
4.3.2 More on the Remainder Theorem
4.4 The Factor Theorem
4.4.1 The Factor Theorem and Its Uses
4.4.2 Factoring a Polynomial Given a Zero
4.5 The Rational Root Theorem
4.5.1 Presenting the Rational Zero Theorem
4.5.2 Considering Possible Solutions
4.6 Zeros of Polynomials
4.6.1 Finding Polynomials Given Zeros, Degree, and One Point
4.6.2 Finding all Zeros and Multiplicities of a Polynomial
4.6.3 Finding the Real Zeros for a Polynomial
4.6.4 Using Descartes' Rule of Signs
4.6.5 Finding the Zeros of a Polynomial from Start to Finish
4.7 Graphing Polynomials
4.7.1 Matching Graphs to Polynomial Functions
4.7.2 Sketching the Graphs of Basic Polynomial Functions
4.8 Rational Functions
4.8.1 Understanding Rational Functions
4.8.2 Basic Rational Functions
4.9 Graphing Rational Functions
4.9.1 Vertical Asymptotes
4.9.2 Horizontal Asymptotes
4.9.3 Graphing Rational Functions
4.9.4 Graphing Rational Functions: More Examples
5.1 Function Inverses
5.1.1 Understanding Inverse Functions
5.1.2 The Horizontal Line Test
5.1.3 Are Two Functions Inverses of Each Other?
5.1.4 Graphing the Inverse
5.2 Finding Function Inverses
5.2.1 Finding the Inverse of a Function
5.2.2 Finding the Inverse of a Function with Higher Powers
5.3 Exponential Functions
5.3.1 An Introduction to Exponential Functions
5.3.2 Graphing Exponential Functions: Useful Patterns
5.3.3 Graphing Exponential Functions: More Examples
5.4 Applying Exponential Functions
5.4.1 Using Properties of Exponents to Solve Exponential Equations
5.4.2 Finding Present Value and Future Value
5.4.3 Finding an Interest Rate to Match Given Goals
5.5 The Number e
5.5.1 e
5.5.2 Applying Exponential Functions
5.6 Logarithmic Functions
5.6.1 An Introduction to Logarithmic Functions
5.6.2 Converting between Exponential and Logarithmic Functions
5.7 Solving Logarithmic Functions
5.7.1 Finding the Value of a Logarithmic Function
5.7.2 Solving for x in Logarithmic Equations
5.7.3 Graphing Logarithmic Functions
5.7.4 Matching Logarithmic Functions with Their Graphs
5.8 Properties of Logarithms
5.8.1 Properties of Logarithms
5.8.2 Expanding a Logarithmic Expression Using Properties
5.8.3 Combining Logarithmic Expressions
5.9 Evaluating Logarithmic Functions
5.9.1 Evaluating Logarithmic Functions Using a Calculator
5.9.2 Using the Change of Base Formula
5.10 Applying Logarithmic Functions
5.10.1 The Richter Scale
5.10.2 The Distance Modulus Formula
5.11 Solving Exponential and Logarithmic Equations
5.11.1 Solving Exponential Equations
5.11.2 Solving Logarithmic Equations
5.11.3 Solving Equations with Logarithmic Exponents
5.12 Applying Exponents and Logarithms
5.12.1 Compound Interest
5.12.2 Predicting Change
5.13 Word Problems Involving Exponential Growth and Decay
5.13.1 An Introduction to Exponential Growth and Decay
5.13.2 Half-Life
5.13.3 Newton's Law of Cooling
5.13.4 Continuously Compounded Interest
6.1 Linear Systems of Equations
6.1.1 An Introduction to Linear Systems
6.1.2 Solving Systems with Substitution
6.1.3 Solving Systems by Elimination
6.2 Linear Systems in Three Variables
6.2.1 An Introduction to Linear Systems in Three Variables
6.2.2 Solving Linear Systems in Three Variables
6.2.3 Solving Inconsistent Systems
6.2.4 Solving Dependent Systems
6.2.5 Solving Systems with Two Equations
6.3 Applying Linear Systems
6.3.1 Investments
6.3.2 Solving with Partial Fractions
6.4 Nonlinear Systems of Equations
6.4.1 Solving Nonlinear Systems Using Elimination
6.4.2 Solving Nonlinear Systems with Substitution
6.5 Matrices
6.5.1 An Introduction to Matrices
6.5.2 The Arithmetic of Matrices
6.5.3 Multiplying Matrices by a Scalar
6.5.4 Multiplying Matrices
6.5.5 Multiplying Matrices: Can They Multiply?
6.6 The Gauss-Jordan Method of Solving Matrices
6.6.1 Using the Gauss-Jordan Method
6.6.2 Using Gauss-Jordan: Another Example
6.7 Evaluating Determinants
6.7.1 Evaluating 2x2 Determinants
6.7.2 Evaluating nxn Determinants
6.7.3 Applying Determinants
6.8 Cramer's Rule
6.8.1 Using Cramer's Rule
6.8.2 Using Cramer's Rule in a 3x3 Matrix
6.9 Inverses and Matrices
6.9.1 An Introduction to Inverses
6.9.2 Inverses: 2x2 Matrices
6.9.3 Another Look at 2x2 Inverses
6.9.4 Inverses: 3x3 Matrices
6.9.5 Solving a System of Equations with Inverses
6.10 Working with Inequalities
6.10.1 An Introduction to Graphing Linear Inequalities
6.10.2 Graphing Linear and Nonlinear Inequalities
6.10.3 Graphing the Solution Set of a System of Inequalities
6.11 Linear Programming
6.11.1 Solving for Maxima-Minima
6.11.2 Applying Linear Programming
7.1 Parabolas
7.1.1 An Introduction to Conic Sections
7.1.2 An Introduction to Parabolas
7.1.3 Determining Information about a Parabola from Its Equation
7.1.4 Writing an Equation for a Parabola
7.2 Ellipses
7.2.1 An Introduction to Ellipses
7.2.2 Finding the Equation for an Ellipse
7.2.3 Applying Ellipses: Satellites
7.3 Hyperbolas
7.3.1 An Introduction to Hyperbolas
7.3.2 Finding the Equation for a Hyperbola
7.3.3 Applying Hyperbolas: Navigation
7.4 Conic Sections
7.4.1 Identifying a Conic
7.4.2 Name That Conic
8.1 The Binomial Theorem
8.1.1 Using the Binomial Theorem
8.1.2 Binomial Coefficients
8.2 Sequences
8.2.1 Understanding Sequence Problems
8.2.2 Solving Problems Involving Arithmetic Sequences
8.2.3 Solving Problems Involving Geometric Sequences
8.3 Induction
8.3.1 Proving Formulas Using Mathematical Induction
8.3.2 Examples of Induction
8.4 Combinations and Probability
8.4.1 Solving Problems Involving Permutations
8.4.2 Solving Problems Involving Combinations
8.4.3 Independent Events
8.4.4 Inclusive and Exclusive Events
9.1 Conclusion
9.1.1 Final Close
Edward Burger
Williams College
Edward Burger, Professor of Mathematics at Williams College, earned his Ph.D. at the University of Texas at Austin, having graduated summa cum laude with distinction in mathematics from Connecticut College.
He has also taught at UT-Austin and the University of Colorado at Boulder, and he served as a fellow at the University of Waterloo in Canada and at Macquarie University in Australia. Prof. Burger has won many awards, including the 2001 Haimo Award for Distinguished Teaching of Mathematics, the 2004 Chauvenet Prize, and the 2006 Lester R. Ford Award, all from the Mathematical Association of America. In 2006, Reader's Digest named him in the "100 Best of America".
Prof. Burger is the author of over 50 articles, videos, and books, including the trade book, Coincidences, Chaos, and All That Math Jazz: Making Light of Weighty Ideas and of the textbook The Heart of Mathematics: An Invitation to Effective Thinking. He also speaks frequently to professional and public audiences, referees professional journals, and publishes articles in leading math journals, including The Journal of Number Theory and American Mathematical Monthly. His areas of specialty include number theory, Diophantine approximation, p-adic analysis, the geometry of numbers, and the theory of continued fractions.
Prof. Burger's unique sense of humor and his teaching expertise combine to make him the ideal presenter of Thinkwell's entertaining and informative video lectures.
TestPrep
60-day access$17.95
A fast way to prepare for a final exam!
Thinkwell has identified the topics that are most commonly found on a final exam. Take a quick test to find out which topics you need to work on and watch only those videos. If you have a limited time to prepare for a final, this is for you!
Online subscription is not required. Workbooks or CDs are not available.
Thinkwell's College Algebra TestPrep with Edward Burger helps you get ready for your finals with no wasted time! Thinkwell's College Algebra TestPrep helps you get right to work on the exact topics you need help with. Focus only on what you need and be ready for your exam in less than 5 hours!
Diagnostic Tests
Time is tight during exam season, so we'll help you get going by offering a Pre-study Prep Test that tells you exactly which topics you need to review. Once you've studied the recommended topics, there's a Practice Final that checks to make sure you're up to speed and ready to ace your final. There's no wasted time with Thinkwell's College Algebra TestPrep!
Comprehensive Video Tutorials
We've built Thinkwell's College Algebra TestPrep around carefully selected multimedia tutorials that provide a quick and concise review of College Algebra. Thinkwell's tutorials offer a more engaging, more effective way for you to learn. Watch one Thinkwell video lecture and you'll understand why Thinkwell works better.
Interactive Exercises with Feedback
Each of Thinkwell's College Algebra TestPrep topics includes exercises with fully worked-out solutions and explanations. Practice and review as often as you like and be ready for your exam!
Review Notes and More
We include illustrated review notes, a glossary, transcripts of the video lectures, and links to relevant websites. These optional materials can be viewed online, and the notes and transcripts can be printed and kept for reference.
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Finals season is a breeze with Thinkwell's College Algebra TestPrep? It's a sure-fire way to make the grade!
1.1 TestPrep Topics
1.1.1 Factoring by Any Method
1.1.2 Dividing Complex Numbers
1.1.3 Solving a Linear Equation with Rationals
1.1.4 Solving for Constant Velocity
1.1.5 Solving a Mixture Problem
1.1.6 Solving Quadratics by Factoring
1.1.7 Using the Quadratic Formula
1.1.8 Solving an Equation with Two Radicals
1.1.9 Direct Proportion
1.1.10 Inverse Proportion
1.1.11 Solving Quadratic Inequalities: Another Example
1.1.12 Solving Rational Inequalities
1.1.13 Solving Absolute Value Equations
1.1.14 Solving Absolute Value Inequalities
1.1.15 Finding the Distance between Two Points
1.1.16 Finding the Center and Radius of a Circle
1.1.17 Finding the x- and y-Intercepts of an Equation
1.1.18 Function Notation and Finding Function Values
1.1.19 Determining Intervals Over Which a Function Is Increasing
1.1.20 Evaluating Piecewise-Defined Functions for Given Values
1.1.21 Finding the Domain and Range of a Function
1.1.22 Satisfying the Domain of a Function
1.1.23 Writing an Equation Given Two Points
1.1.24 Matching a Slope-Intercept Equation with Its Graph
1.1.25 Slope with Parallel and Perpendicular Lines
1.1.26 Using Operations on Functions
1.1.27 Components of Composite Functions
1.1.28 Finding the Difference Quotient of a Function
1.1.29 Finding the Maximum or Minimum of a Quadratic
1.1.30 Graphing Parabolas
1.1.31 Graphing Quadratics Using Patterns
1.1.32 Finding the Zeros of a Polynomial from Start to Finish
1.1.33 Graphing Polynomial Functions: Another Example
1.1.34 Graphing Rational Functions
1.1.35 Finding the Inverse of a Function
1.1.36 Graphing Exponential Functions: Useful Patterns
1.1.37 Using Properties of Exponents to Solve Exponential Equations
1.1.38 Graphing Logarithmic Functions
1.1.39 Expanding a Logarithmic Expression Using Properties
1.1.40 Combining Logarithmic Expressions
1.1.41 Using the Change of Base Formula
1.1.42 Solving Exponential Equations
1.1.43 Solving Logarithmic Equations
1.1.44 Compound Interest
1.1.45 Solving Linear Systems in Three Variables
Edward Burger
Williams College
Edward Burger, Professor of Mathematics at Williams College, earned his Ph.D. at the University of Texas at Austin, having graduated summa cum laude with distinction in mathematics from Connecticut College.
He has also taught at UT-Austin and the University of Colorado at Boulder, and he served as a fellow at the University of Waterloo in Canada and at Macquarie University in Australia. Prof. Burger has won many awards, including the 2001 Haimo Award for Distinguished Teaching of Mathematics, the 2004 Chauvenet Prize, and the 2006 Lester R. Ford Award, all from the Mathematical Association of America. In 2006, Reader's Digest named him in the "100 Best of America".
Prof. Burger is the author of over 50 articles, videos, and books, including the trade book, Coincidences, Chaos, and All That Math Jazz: Making Light of Weighty Ideas and of the textbook The Heart of Mathematics: An Invitation to Effective Thinking. He also speaks frequently to professional and public audiences, referees professional journals, and publishes articles in leading math journals, including The Journal of Number Theory and American Mathematical Monthly. His areas of specialty include number theory, Diophantine approximation, p-adic analysis, the geometry of numbers, and the theory of continued fractions.
Prof. Burger's unique sense of humor and his teaching expertise combine to make him the ideal presenter of Thinkwell's entertaining and informative video lectures.
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