1.1: Algebra, Relations and Functions
1.1.1: Solving Quadratic Equations Graphically
1.1.2: Solving Quadratic Equations: Factoring
1.1.3: Solving Quadratic Equations: Quadratic Formula
1.1.4: Introduction to Complex Numbers
1.1.5: Pure Imaginary Numbers
1.1.6: Equating, Adding, and Subtracting Complex Numbers
1.1.7: Multiplying Complex Numbers
1.1.8: Dividing Complex Numbers
1.1.9: Complex Number Conjugates
1.1.10: Discriminants of Quadratics
1.1.11: Solving Quadratic Equation with Complex Roots
1.1.12: Forming a Quadratic Equation from its Roots
1.1.13: Forming a Quadratic Equation Using Another Quadratic Equation
1.1.14: Sign of a Function
1.1.15: One-Variable Quadratic Inequalities