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

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Answer 1 · 2015-10-10T08:35:04

$F^{- 1} (x) = \frac{x + 4}{4}$ $F^-1(x)=(x+4)/4$

Let $f (x)$ $f(x)$ = $y$ $y$ .

$y = 4 x - 4$ $y=4x-4$

Make $x$ $x$ the subject of the equation.

$4 x = y + 4$ $4x=y+4$
$x = \frac{y + 4}{4}$ $x=(y+4)/4$

Change the $y$ $y$ to $x$ $x$ in your final answer.

$F^{- 1} (x) = \frac{x + 4}{4}$ $F^-1(x)=(x+4)/4$

How do you find the inverse of F(x)=4x−4F(x)=4x-4?