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Find the domain of the composite function fog (x) if f(x)= 2x+1; g(x)= x +4
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Find the domain of the composite function fog (x) if f(x)= 2x+1; g(x)= x +4

User Joe Seff
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fog(x)= 2(x+4)+1 = 2x+8+1 = 2x+9 so the domain are all of real numbers
User Itzik Ben Shabat
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