3 years ago

If f(x) = 9x+1, find f^-1 (f(3))

Mathematics

1 answer:

Nookie1986 [14]3 years ago

7 0

F(3) = 9(3) + 1 = 28

f-1(x) = (x - 1)/9

so f^-1 (f(3)) = (28-1) / 9 = 3 (answer)

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