Unit 2 · Algebra

Chapter 2.8

Functions, Graphs, and Absolute Value

A graph turns an equation into a picture, and many AMC problems are easier to see than to solve.

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By the end

  1. 01Evaluate and compose functions given by rules or tables
  2. 02Sketch lines and absolute-value graphs to count solutions or find regions
  3. 03Solve absolute-value equations and inequalities by splitting at sign changes

In unit 2

  1. 2.1Choosing the Unknown
  2. 2.2Rates, Ratios, and Percents
  3. 2.3Averages Are Totals in Disguise
  4. 2.4Factor Before You Compute
  5. 2.5Quadratics and Their Roots
  6. 2.6Arithmetic and Geometric Sequences
  7. 2.7Sequences Built From Their Past
  8. 2.8Functions, Graphs, and Absolute Value
  9. 2.9Which Idea Opens It? Algebra
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