SOLUTION: f (x)= x +5 and g (x) =|x |, find (f• g)(-4) and (g• f)(-4)

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Question 469431: f (x)= x +5 and g (x) =|x |, find (f• g)(-4) and (g• f)(-4)
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
(f• g)(x)=f(g(x))=g(x) +5=|x |+5
(f• g)(-4)=|-4|+5=4+5=9
(g• f)(x)=g(f(x))=|f(x) |=|x+5|
(g• f)(-4)=|-4+5|=|1|=1