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frutty [35]
2 years ago
12

If f(x) = 2x+4, which of the following is the inverse of f(x)?

Mathematics
1 answer:
Mrrafil [7]2 years ago
4 0

By definition of inverse function,

f\left(f^{-1}(x)\right) = x

Given that f(x) = 2x + 4, solve for the inverse of f :

f\left(f^{-1}(x)\right) = 2 f^{-1}(x) + 4 = x \implies f^{-1}(x) = \dfrac{x-4}2

(I'm not entirely sure which answer that corresponds to from the choices provided...)

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