SOLUTION: if f(x)=9x-7, find the function g that is the inverse of f g(x)=7x+9

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Question 838580: if f(x)=9x-7, find the function g that is the inverse of f
g(x)=7x+9
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
highlight_green%28highlight%28g%28x%29%3C%3E7x%2B9%29%29.

You want to find the inverse of f(x) and call this inverse to be g(x).

The input of f being g must give x as the result.
f%28g%28x%29%29=9%28g%28x%29%29-7=x
9%28g%28x%29%29=x%2B7
highlight%28g%28x%29=%28x%2B7%29%2F9%29, and this should be to inverse of f(x).