How do you find the inverse of $2 x - 2$ $2x-2$ and is it a function?

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Answer 1 · 2016-05-04T07:31:40

$y = \frac{x}{2} + 1$ $y=x/2+1$ is a function

Given the function $y = 2 x - 2$ $y=2x-2$ , rearrange it to express $x$ $x$ in terms of $y$ $y$ .

$2 x = y + 2$ $2x=y+2$

$x = \frac{y}{2} + 1$ $x=y/2+1$

Now exchange $x$ $x$ and $y$ $y$ so that the equation is in the traditional form.
$y = \frac{x}{2} + 1$ $y=x/2+1$

This is the inverse, and it is a function.

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