Question

dadas as funçoes f(x)= 4x+5 e g(x) = -x-6 determine f(g(x) ) ?

Answer 1

f(g(x) ) = f ( -x -6 )

f( -x -6) = 4( -x -6) + 5

f( -x -6) = -4x -24 + 5

f( -x -6) = -4x - 19

f(g(x)) = -4x - 19