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28 ERROR ANALYSIS Two students found the equation of the axis of symmetry for the graph of f x x 2x 1 Who is incorrect

28 ERROR ANALYSIS Two students found the equation of the axis of symmetry for the graph of f x x 2x 1 Who is incorrect Explain the error A B X b 2a X 27 2 4 Axis of symmetry is x X b 2a 2 1 1 Axis of symmetry is x 1

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