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Precalculus Study Notes: Functions, Piecewise Functions, Graphs, Complex Numbers, and Quadratic Functions

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Intro to Functions & Their Graphs

  • Finding the Domain and Range of a Graph
    5:10
  • Verifying if Equations are Functions
    5:38
  • Relations and Functions
    5:20

Function Composition

  • Decomposition of Functions
    4:07
  • Function Composition
    4:56
  • Domain Restrictions of Composed Functions
    3:51

Complex Numbers

  • Percorso guidato
    Introduction to Complex Numbers
    03:31
  • Percorso guidato
    Dividing Complex Numbers
    04:22
  • Percorso guidato
    Complex Conjugates
    05:33

The Imaginary Unit

  • Percorso guidato
    Square Roots of Negative Numbers
    05:02

Powers of i

  • Percorso guidato
    Powers of i
    04:10
  • Percorso guidato
    Higher Powers of i
    05:10

Intro to Quadratic Equations

  • Percorso guidato
    Introduction to Quadratic Equations
    05:35
  • Percorso guidato
    Solving Quadratic Equations by Factoring
    06:08

Quadratic Functions

  • Percorso guidato
    Properties of Parabolas
    07:42
  • Percorso guidato
    Vertex Form
    08:07
  • Percorso guidato
    Example 1
    07:11