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Chapter 4 Matrices (MX)

Readiness Assurance.

Before beginning this chapter, you should be able to...
  1. Compose functions of real numbers.
    • Review: Khan Academy
       1 
      www.khanacademy.org/math/precalculus/composite/composing/v/function-composition
  2. Identify the domain and codomain of linear transformations.
    • Review: YouTube
       2 
      www.youtube.com/watch?v=BQMyeQOLvpg
  3. Find the matrix corresponding to a linear transformation and compute the image of a vector given a standard matrix.
  4. Determine if a linear transformation is injective and/or surjective.
  5. Interpret the ideas of injectivity and surjectivity in multiple ways.
    • Review: YouTube
       3 
      www.youtube.com/watch?v=WpUv72Y6Dl0