How to find the inverse of a function f 1


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Find the inverse function f^-1(x) for the given function f(x). f(x) =3x-8

Answered by admin @



f(x)=3x-8\\\\y=3x-8\ \ \ \ |+8\\\\3x=y+8\ \ \ \ |:3\\\\x=\dfrac{y+8}{3}

Answer: y=\dfrac{x+8}{3}=\dfrac{1}{3}x+\dfrac{8}{3}


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