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If f(x) = 3x + 1 and f^-1 = x-1/3 , then f^-1(7) = A . 22 B . 2 C . -2
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3 votes
If

f(x) = 3x + 1 and f^-1 = x-1/3 ,
then f^-1(7) =
A . 22
B . 2
C . -2

User Phxhawke
by
7.2k points

1 Answer

1 vote
B

You can find it by plugging 7 in for x in the f^-1(x). so, 7-1/3
6/3
2
User Upendra Shah
by
7.3k points
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