The inverse of is:

MATHEMATICS · Single correct · AP · AP Precalculus · Exponential and Logarithmic Functions · Exponential and Logarithmic Functions

Problem

The inverse of f(x)=3x+4f(x) = 3^x + 4 is: (A) f−1(x)=log⁡3(x−4)f^{-1}(x) = \log_3(x - 4) (B) f−1(x)=log⁡4(x−3)f^{-1}(x) = \log_4(x - 3) (C) f−1(x)=4x+3f^{-1}(x) = 4^x + 3 (D) f−1(x)=−3x−4f^{-1}(x) = -3^x - 4

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