Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

How do you find the inverse function of: $y = (x+1) / (2x + 1)$ ?

1 Answer

Aug 7, 2015

$x= (1-y)/(2y-1)$

Explanation:

Given $y = (x+1)/(2x+1)$

$color(white)("XXXX")$ $2xy+y = x+1$

$color(white)("XXXX")$ $2xy-x-1+y = 0$

$color(white)("XXXX")$ $x(2y-1) -1+y = 0$

$color(white)("XXXX")$ $x(2y-1) = 1-y$

$color(white)("XXXX")$ $x = (1-y)/(2y-1)$

Related questions

See all questions in Graphing Rational Functions on a Graphing Calculator

Impact of this question

6784 views around the world

You can reuse this answer
Creative Commons License