slimhackney64161 slimhackney64161 25-05-2023 Mathematics contestada (a) If f(x) = 3x + 4 and g(x) = 4 - 2x, find f(g(4)) and g(f(4)). f(g(4)) = -28 x g(f(4)) = (b) Is the composition of functions commutative? O Yes O No