## Algebra: A Combined Approach (4th Edition)

$f(x) = 2x + 2$
$f(x) = 0.5x - 1$ $y = 0.5x - 1$ Switch the x & y, to get an inverse function. $x = 0.5y - 1$ $x + 1 = 0.5y$ $(2)(x+1) = (2)(0.5y)$ $2x + 2 = y$ $$f(x) = 2x + 2$$