Which statement best describes how to determine whether f(x) = x2 – x + 8 is an even function? Determine whether –x2 – (–x) + 8

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Which statement best describes how to determine whether f(x) = x2 – x + 8 is an even function? Determine whether –x2 – (–x) + 8

is equivalent to x2 – x + 8. Determine whether (–x)2 – (–x) + 8 is equivalent to x2 – x + 8. Determine whether –x2 – (–x) + 8 is equivalent to –(x2 – x + 8). Determine whether (–x)2 – (–x) + 8 is equivalent to –(x2 – x + 8).

Mathematics