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OpenStudy (anonymous):
if f(x)=9x+1, find f^-1(f(3))
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OpenStudy (amistre64):
f(3) = 28; so im guessing its 28 again, but let me chk
OpenStudy (amistre64):
f(3) = 28 f-1 = (x-1)/9 28-1 ----- = 27/9 = 3 9
OpenStudy (anonymous):
it is 28
OpenStudy (amistre64):
... its 3 :)
OpenStudy (amistre64):
i had the right thought, but the wrong concept lol
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OpenStudy (anonymous):
3
OpenStudy (anonymous):
27 divided by 9 is 3 yup right
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