What is the inverse of the function f(x)=x5−2f(x) = \frac{x}{5} - 2f(x)=5x−2?
f−1(x)=5x+2f^{-1}(x) = 5x + 2f−1(x)=5x+2
f−1(x)=5(x+2)f^{-1}(x) = 5(x + 2)f−1(x)=5(x+2)
f−1(x)=x+25f^{-1}(x) = \frac{x + 2}{5}f−1(x)=5x+2
f−1(x)=5x−10f^{-1}(x) = 5x - 10f−1(x)=5x−10