If a(x) = 3x + 1 and (x)= x-4, what is the domain of (boa)(x)?

AlexandrX asked Apr 18, 2023

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AlexandrX asked Apr 18, 2023

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14 votes

I am assuming you meant to write b(x) = x-4.

$(b \circ a)(x)=b(a(x))=b(3x+1)=(3x+1)-4=\boxed{3x-3}$

Since this is a linear function, the domain is all real numbers.

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