Find the domain of the function.
-$$f ( x ) = 7 x + 5$$
A) $( - 5 , \infty )$
B) $( \infty , 0 )$ or $( 0 , \infty )$
C) $( \infty , \infty )$
D) $( x , - 5 )$ or $( - 5 , \infty )$

Question

Quizplus · Accepted Answer

The function $f(x) = 7x + 5$ is a linear function, which means it is defined for all real numbers. The notation $( \infty , \infty )$ is not standard, but in this context, it suggests that the domain is all real numbers, which is correct. The correct notation for the domain of all real numbers would be $(-\infty, \infty)$.

Find the Domain of the Function f(x)=7x+5f ( x ) = 7 x + 5f(x)=7x+5

Find the Domain of the Function $f ( x ) = 7 x + 5$