Mathematics
shelbyharmony
27

If f(x) is an even function, which statement about the graph of f(x) must be true? -It has rotational symmetry about the origin. -It has line symmetry about the line y = x. -It has line symmetry about the y-axis. -It has line symmetry about the x-axis

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(1) Answers
Kosterk

the true answer is -It has line symmetry about the y-axis. proof consider f(x) = x², it is an even function  because f(-x) = f(x) = x², it is  has line symmetry about the y-axis.

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