Restrict the domain of the function f so that the function is one-to-one and has an inverse function. Then find the inverse function f-1. State the domains and ranges of f and f-1.
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f(x) = -6x2 + 2
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A. 
The domain of f and the range of f-1 are all real numbers x such that x ? 0.
The domain of f-1 and the range of f are all real numbers x such that x ? 2.
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B.
The domain of f and the range of f-1 are all real numbers x such that x ? 0.
The domain of f-1 and the range of f are all real numbers x such that x ? 2.
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C.
The domain of f and the range of f-1 are all real numbers x such that x ? 0.
The domain of f-1 and the range of f are all real numbers x such that x ? 2.
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D.
The domain of f and the range of f-1 are all real numbers x such that x ? 0.
The domain of f-1 and the range of f are all real numbers x such that x ? -2.
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E.
The domain of f and the range of f-1 are all real numbers x such that x ? 0.
The domain of f-1 and the range of f are all real numbers x such that x ? 2.
Answer: A
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