Find f(x) if it is known that f(x−2)=2x−4.

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asked Feb 28, 2019 196k views

5 votes

Find f(x) if it is known that f(x−2)=2x−4.

Mathematics
high-school

Peter Strange asked

by Peter Strange

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1 Answer

5 votes

Hi,
Let assume y=x-2, so x=y+2

$f(x-2)=2x-4\\ f(y)=2(y+2)-4\\ f(y)=2y+4-4\\ f(y)=2y\\$
f(x)=2x

Cfranco answered Mar 4, 2019

by Cfranco

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