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The domain of a function, f(x), is all numbers between -1 and 6, inclusive. The range of this function is all numbers between 0 and 12, inclusive.

a) What is the domain of .5f(3x)?
b) What is the range of .5f(3x)?

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domain: -1 <= 3x <= 6
so, -1/3 <= x <= 2

range = .5*range(f(x) = [0,6]

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