Given functions f and g, perform the indicated operations.
-Find the domain of $( f + g ) ( x )$ when $f ( x ) = 9 - 5 x$ and $g ( x ) = - 9 x + 3$
A) Domain: $( - \infty , \infty )$
B) Domain: $( - \infty , 9 )$
C) Domain: $( - 5 , \infty )$
D) Domain: $( - 9,5 )$

Question

Quizplus · Accepted Answer

The domain of both $f(x) = 9 - 5x$ and $g(x) = -9x + 3$ is all real numbers, $(-\infty, \infty)$, because there are no restrictions such as division by zero or square roots of negative numbers. When adding these two functions, the domain remains all real numbers.

Given Functions F and G, Perform the Indicated Operations (f+g)(x)( f + g ) ( x )(f+g)(x)

Given Functions F and G, Perform the Indicated Operations $( f + g ) ( x )$