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find the inverse of f(x)=8(x-1)

 Oct 24, 2022
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Answer is :       F^-1 (x) =  x/8 + 1 !

 

Write f(x) =8x-8 as an equation :

y = 8x-8

 

Interchange the variables :

x = 8y - 8

 

Solve for Y :

Y= x/8 + 1

 

Replace Y with f^-1 (x) to show the final answer:

F^-1 (x) = x/8 + 1

 

And the last one...verify if f^-1 (x) = x/8 + 1 is the inverse  of f(x) = 8x-8.

 

So answer is : F^-1 (x) = x/8 + 1 !!

 

Tell me if I've done something wrong! cool( If you want to verify , verify it by yourself). Its just so easy!

 Oct 24, 2022

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