How do you find the inverse of $f(x)=4x-1$ ?

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Answer 1 · 2018-03-21T10:22:41

$f^-1(x)=1/4(x+1)$

$"Rearrange making x the subject"$

$rArr4x-1=y$

$rArr4x=y+1$

$rArrx=1/4(y+1)$

$"convert y into x for inverse function"$

$rArrf^-1(x)=1/4(x+1)$

How do you find the inverse of f(x)=4x-1f(x)=4x-1?