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September 15, 2014

September 15, 2014

Posted by **brianna** on Friday, November 4, 2011 at 8:44am.

- college algebra -
**Writeacher**, Friday, November 4, 2011 at 8:49amYour umpteen posts have been removed.

To quote one of our very good math and science tutors: “You will find here at Jiskha that__long series of questions, posted with no evidence of effort or thought by the person posting, will not be answered__. We will gladly respond to your future questions in which**your thoughts**are included.”

- basic algebra -
**drwls**, Friday, November 4, 2011 at 9:10amLet y = g(x) = 0.5x + 18

0.5x = (y-18)

x = 2y -36.

Switch x and y for the inverse function, and x becomes the inverse function g^-1(x)

g^-1(x) = 2x - 36

g^-1(20) = 4

**Answer this Question**

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