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5 votes
If f(x)=4x-8, what isf-1(x) ?

1 Answer

6 votes
f(x)=4x-8
f(x)=y=4x-8
f^-1(x)=?
x=4y-8
x+8=4y
f^-1(x)=y=1/4x+2
User Stephen Olsen
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