Question

Let f(x)=9x−8, how do you find (fof)(5)?

Answer 1

Given f(x) = 9x - 8

f(5) = 9x5 - 8= 45 -8 = 37

fof(5) = f [ f(5 ) ] = f ( 37) = 9x 37 - 8 =

333 - 8 = 325

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