How do you find the inverse of $y=3-7x$ and is it a function?

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Answer 1 · 2016-07-09T16:09:25

$f^(-1)(x)=(3-x)/7$

$f(x)=y=3-7x$

$7x=3-y$

$x=(3-y)/7$

$"Change the term 'x' as 'y' and the term 'y' as 'x' vice versa"$

$f^(-1)(x)=(3-x)/7$

How do you find the inverse of y=3-7xy=3-7x and is it a function?