SOLUTION: FIND THE INVERSE OF THE ONE TO ONE FUNCTION. {{{ f(x)=sqrt(x-7) }}}

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Question 691437: FIND THE INVERSE OF THE ONE TO ONE FUNCTION.
+f%28x%29=sqrt%28x-7%29+

Answer by mouk(232) About Me  (Show Source):
You can put this solution on YOUR website!
Let +y=sqrt%28x-7%29+ then re-arrange to make +x+ the subject
+sqrt%28x-7%29+=+y
+y%5E2+=+x-7
+x=y%5E2%2B7+
this is the inverse function, so +f%5E%28-1%29%28x%29=x%5E2+%2B+7+