Variable Expressions
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ck12.org Algebra 1 Examples
Select problems from ck12.org's Algebra 1 FlexBook (Open Source Textbook). This is a good playlist to review if you want to make sure you have a good understanding of all of the major topics in Algebra I.
Videos
  1. Variable Expressions
  2. Order of Operations Example
  3. Patterns and Equations
  4. Equations and Inequalities
  5. Domain and Range of a Function
  6. Functions as Graphs
  7. Word Problem Solving Plan 1
  8. Word Problem Solving Strategies
  9. Integers and Rational Numbers
  10. Addition of Rational Numbers
  11. Subraction of Rational Numbers
  12. Multiplication of Rational Numbers
  13. Distributive Property Example 1
  14. Division of Rational Numbers
  15. Square Roots and Real Numbers
  16. Problem Solving Word Problems 2
  17. One Step Equations
  18. Two-Step Equations
  19. Multi-Step Equations
  20. Equations with Variables on Both Sides
  21. Ratio and Proportion
  22. Scale and Indirect Measurement
  23. Percent Problems
  24. Word Problem Solving 3
  25. The Coordinate Plane
  26. Graphing Using Intercepts
  27. Graphs of Linear Equations
  28. Slope and Rate of Change
  29. Graphs Using Slope-Intercept Form
  30. Direct Variation Models
  31. Linear Function Graphs
  32. Word Problem Solving 4
  33. Linear Equations in Slope Intercept Form
  34. Linear Equations in Point Slope Form
  35. Linear Equations in Standard Form
  36. Equations of Parallel and Perpendicular Lines
  37. Fitting a Line to Data
  38. Predicting with Linear Models
  39. Using a Linear Model
  40. Inequalities Using Addition and Subtraction
  41. Inequalities Using Multiplication and Division
  42. Compound Inequalities
  43. Absolute Value Equations
  44. Absolute Value Inequalities
  45. Graphing Inequalities
  46. Solving Linear Systems by Graphing
  47. Solving Linear Systems by Substitution
  48. Solving Systems of Equations by Elimination
  49. Solving Systems of Equations by Multiplication
  50. Special Types of Linear Systems
  51. Systems of Linear Inequalities
  52. Exponent Properties Involving Products
  53. Exponent Properties Involving Quotients
  1. Zero, Negative, and Fractional Exponents
  2. Scientific Notation
  3. Exponential Growth Functions
  4. Exponential Decay Functions
  5. Geometric Sequences (Introduction)
  6. Word Problem Solving- Exponential Growth and Decay
  7. Addition and Subtraction of Polynomials
  8. Multiplication of Polynomials
  9. Special Products of Binomials
  10. Polynomial Equations in Factored Form
  11. Factoring Quadratic Expressions
  12. Factoring Special Products
  13. Factor by Grouping and Factoring Completely
  14. Graphs of Quadratic Functions
  15. Solving Quadratic Equations by Graphing
  16. Solving Quadratic Equations by Square Roots
  17. Solving Quadratic Equations by Completing the Square
  18. Using the Quadratic Formula
  19. Proof of Quadratic Formula
  20. Discriminant of Quadratic Equations
  21. Linear, Quadratic, and Exponential Models
  22. Identifying Quadratic Models
  23. Identifying Exponential Models
  24. Quadratic Regression
  25. Graphs of Square Root Functions
  26. Radical Expressions with Higher Roots
  27. More Simplifying Radical Expressions
  28. How to Rationalize a Denominator
  29. Extraneous Solutions to Radical Equations
  30. Radical Equation Examples
  31. More Involved Radical Equation Example
  32. Pythagorean Theorem
  33. Distance Formula
  34. Midpoint Formula
  35. Visual Pythagorean Theorem Proof
  36. Average or Central Tendency: Arithmetic Mean, Median, and Mode
  37. Range, Variance and Standard Deviation as Measures of Dispersion
  38. Stem and Leaf Plots
  39. Histograms
  40. Box-and-whisker Plot
  41. Proportionality
  42. Asymptotes of Rational Functions
  43. Another Rational Function Graph Example
  44. A Third Example of Graphing a Rational Function
  45. Polynomial Division
  46. Simplifying Rational Expressions Introduction
  47. Multiplying and Dividing Rational Expressions
  48. Adding Rational Expressions Example 1
  49. Adding Rational Expressions Example 2
  50. Adding Rational Expressions Example 3
  51. Solving Rational Equations
  52. Two more examples of solving rational equations
  53. Surveys and Samples