3 years ago

If f(x)=9x-8, which of the following is the inverse of f(x)?

Mathematics

1 answer:

USPshnik [31]3 years ago

8 0

$f(x)=9x-8\\
y=9x-8\\
9x=y+8\\
x=\dfrac{1}{9}y+\dfrac{8}{9}\\
f^{-1}(x)=\dfrac{1}{9}x+\dfrac{8}{9}$

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