Precalc0103to0104-page30 - (Section 1.4: Transformations)...

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(Section 1.4: Transformations) 1.4.6 Example 5 (Reflections and Symmetry) Let fx () = x 2 . The graph of f is below. The graph is its own reflection about the y -axis , because f is an even function. The graphs of y = and y = f ± x are the same: f ± x = ± x 2 = x 2 . Thus, the graph is symmetric about the y -axis . § Example 6 (Reflections and Symmetry)
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