What is the inverse of the function #f(x)=1/9x+2#?

1 Answer
Serena D.
Apr 3, 2018

#f^-1(x)=9x-18#

Explanation:

#f(x)=1/9x+2 rarr# Switch the #f(x)# with a #y#

#y=1/9x+2 rarr# Switch the places of the x and the y variables

#x=1/9y+2 rarr# Solve for y

#x-2=1/9y#

#y=9x-18#

The inverse is #f^-1(x)=9x-18#

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