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Mathematics, 28.01.2020 14:55 QueensQueens

Which statement best describes how to determine whether f(x) = 9 – 4x^2 is an odd function?

determine whether 9 – 4(–x)^2 is equivalent to 9 – 4x^2.

determine whether 9 – 4(–x^2) is equivalent to 9 + 4x^2.
determine whether 9 – 4(–x)^2 is equivalent to –(9 – 4x^2).

determine whether 9 – 4(–x^2) is equivalent to –(9 + 4x^2).

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Which statement best describes how to determine whether f(x) = 9 – 4x^2 is an odd function?
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