SOLUTION: Let f(x) = x2 - 16. Find f-1(x). ?

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Question 919113: Let f(x) = x2 - 16. Find f-1(x). ?
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
If , then





Swap x and y. Then solve for y.





Since this means (remember x and y swapped).

The inverse function is

Let me know if you need more help or if you need me to explain a step in more detail.
Feel free to email me at jim_thompson5910@hotmail.com
or you can visit my website here: http://www.freewebs.com/jimthompson5910/home.html

Thanks,

Jim
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