Find the domain of $f ( x ) = 3 x + 2$ .
A) the set of all real numbers except 0
B) the set of all real numbers except $- \frac { 2 } { 3 }$
C) the set of all real numbers except $\sqrt { 3 }$
D) the set of all real numbers

Question

Quizplus · Accepted Answer

The domain of a linear function like $f(x)=3x+2$ is the set of all real numbers. There are no restrictions on which values of $x$ can be plugged into the function, so the domain is the set of all real numbers. Therefore, the answer is D.

Find the Domain Of f(x)=3x+2f ( x ) = 3 x + 2f(x)=3x+2

Find the Domain Of $f ( x ) = 3 x + 2$