## anonymous one year ago If f(x) = 4x – 9, what is the equation for f–1(x)?

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1. Nnesha

f^{-1}(x) inverse of f(x) f(x) is same as y so we can replace f(x) with y $\huge\rm \color{ReD}{y}=4\color{blue}{x}-9$ and then to find inverse switch x and y $\huge\rm \color{blue}{x}=4\color{red}{y}-9$

2. Nnesha

now solve for y