OpenStax Elementary Algebra 2e

• Online textbook
• Whiteboard notes
• Old assignments

2 Solving Linear Equations and Inequalities

• 2.1 and 2.2 Solving Equations using the Properties of Equality
• 2.3 Solve Equations with Variables and Constants on Both Sides
• 2.4 Use a General Strategy to Solve Linear Equations
• 2.5 Solve Equations with Fractions or Decimals
• 2.6 Solve a Formula for a Specific Variable
• 2.7 Solve Linear Inequalities

3 Math Models

• 3.1 Use a Problem-Solving Strategy
• 3.2 Solve Percent Applications
• 3.3 Solve Mixture Applications
• 3.4 Solve Geometry Applications: Triangles, Rectangles, and the Pythagorean Theorem
• 3.5 Solve Uniform Motion Applications
• 3.6 Solve Applications with Linear Inequalities

4 Graphs

• 4.1 Use the Rectangular Coordinate System
• 4.2 Graph Linear Equations in Two Variables
• 4.3 Graph with Intercepts
• 4.4 Understand Slope of a Line
• 4.5 Use the Slope-Intercept Form of an Equation of a Line
• 4.6 Find the Equation of a Line
• 4.7 Graphs of Linear Inequalities