Find the domain of the function.
-$$f ( x ) = \frac { x ^ { 2 } } { x ^ { 2 } + 15 }$$
A) $( \infty , - 15 )$ or $( - 15 , \infty )$
B) $( - 15 , \infty )$
C) $( \infty , 0 )$ or $( 0 , \infty )$
D) $( \infty , \infty )$

Question

Quizplus · Accepted Answer

The denominator $x^2 + 15$ is never zero because $x^2$ is always non-negative, and adding 15 ensures the denominator is always positive. Thus, the function is defined for all real numbers.

Find the Domain of the Function f(x)=x2x2+15f ( x ) = \frac { x ^ { 2 } } { x ^ { 2 } + 15 }f(x)=x2+15x2​

Find the Domain of the Function $f ( x ) = \frac { x ^ { 2 } } { x ^ { 2 } + 15 }$