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The inverse of f(x) = (2x-1)/(x+5) may be written in the form f^-1(x) = (ax + b)/(cx + d), where a,b, and, c  are real numbers. Find a/c.

 Jul 9, 2020
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The inverse function is \(f^{-1}(x) = \dfrac{-5x - 1}{2x + 1}\), so a/c = -5/2.

 Jul 9, 2020

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