Find the domain of the function.
-$$f ( x ) = x ^ { 2 } + 8$$
A) $[ - 8 , \infty )$
B) $( \infty , - 8 )$ or $( - 8 , \infty )$
C) $( - 8 , \infty )$
D) $( \infty , \infty )$

Question

Quizplus · Accepted Answer

The domain of a quadratic function like $f(x) = x^2 + 8$ is all real numbers, because you can plug any real number into the function and get a valid output. The notation $(-\infty, \infty)$ represents all real numbers.

Find the Domain of the Function f(x)=x2+8f ( x ) = x ^ { 2 } + 8f(x)=x2+8

Find the Domain of the Function $f ( x ) = x ^ { 2 } + 8$