Find the domain of the function.
-$$f ( x ) = \frac { 1 } { x - 9 }$$
A) $( - \infty , 9 ) \cup ( 9 , \infty )$
B) $( - \infty , \infty )$
C) $( 9 , \infty )$
D) $( - \infty , 0 ) \cup ( 0 , \infty )$

Question

Quizplus · Accepted Answer

The function $f(x) = \frac{1}{x - 9}$ is undefined when the denominator is zero, which occurs at $x = 9$. Therefore, the domain excludes 9 and includes all other real numbers, represented as $(-\infty, 9) \cup (9, \infty)$.

Find the Domain of the Function f(x)=1x−9f ( x ) = \frac { 1 } { x - 9 }f(x)=x−91​

Find the Domain of the Function $f ( x ) = \frac { 1 } { x - 9 }$