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How do you find the inverse of $f (x) = \frac{1}{3} x + 2$ $f(x) = 1/3x +2$ and is it a function?

1 Answer

May 18, 2016

$x = 3 \cdot f (x) - 6$ $x=3*f(x)-6$

Explanation:

If
$XXX f (x) = \frac{1}{3} x + 2$ $color(white)("XXX")f(x)=1/3x+2$

then
$XXX \frac{1}{3} x = f (x) - 2$ $color(white)("XXX")1/3x=f(x)-2$
and
$XXX x = 3 \cdot f (x) - 6$ $color(white)("XXX")x=3*f(x)-6$

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