SOLUTION: verify that f and g are inverse functions f(x)=5x+2 , g(x)=(x-2/5)

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Question 1075010: verify that f and g are inverse functions
f(x)=5x+2 , g(x)=(x-2/5)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
f%28g%29=5g%2B2=5%28%28x-2%29%2F5%29%2B2=x-2%2B2=x
So now do the same for g%28f%29.
If f%28g%29=g%28f%29=x, then they are inverse functions.