What is the inverse function of $f(x) = 3 - 1/2x$ ?

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Answer 1 · 2015-10-26T21:43:49

$y = -2x + 6$

Write as $y= 3 - 1/2x$

Make $x$ the dependant variable

$x = 2(3-y) = 6-2y$

Swap the letters around giving:

$y = -2x + 6$

What is the inverse function of f(x) = 3 - 1/2xf(x) = 3 - 1/2x?