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Mathematics 15 Online
OpenStudy (anonymous):

which of the following functions is even? a: f(x) = 4x^5 c: f(x) = 5x^4 -6x^2 b: f(x) = 2x^3 +4 d: f(x) = x

OpenStudy (anonymous):

c. because when a function it's even you do f(-x) and if it gives you the same result as f(x) then it's even.

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