Find the domain.
-$$f ( x ) = | 3 x + 8 |$$
A) $\{ x \mid x$ is a real number and $x \neq - 2.6666667 \}$
B) $\{ x \mid x$ is a real number and $x \neq - 0.375 \}$
C) $\{ x \mid x$ is a real number and $x \neq - 8 \}$
D) All real numbers

Question

Quizplus · Accepted Answer

The function $f(x) = |3x + 8|$ involves an absolute value, which is defined for all real numbers. There are no restrictions on the domain of $x$, so the domain includes all real numbers. Absolute value functions do not have points of discontinuity, so there are no values of $x$ that need to be excluded from the domain.

Find the Domain f(x)=∣3x+8∣f ( x ) = | 3 x + 8 |f(x)=∣3x+8∣

Find the Domain $f ( x ) = | 3 x + 8 |$