f(x) = 4x The function f is defined by. For what value of x does f(x) = 8?
Correct answer: 2
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Explanation
The correct answer is 2. Substituting 8 for f^xh in the given equation yields 8=4 = x. Dividing the left- and right-hand sides of this equation by 4 yields x 2. = Therefore, the value of x is 2 when f^xh 8.
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