201 2 Graphs and Functions The fact that the left and right sides of this butterfly mirror each other is an example of symmetry, a phenomenon found throughout nature and interpreted mathematically in this chapter. 2.1 Rectangular Coordinates and Graphs 2.2 Circles 2.3 Functions 2.4 Linear Functions Chapter 2 Quiz 2.5 Equations of Lines and Linear Models Summary Exercises on Graphs, Circles, Functions, and Equations 2.6 Graphs of Basic Functions 2.7 Graphing Techniques Chapter 2 Quiz 2.8 Function Operations and Composition
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