For the functions f(x) and g(x), evaluate the indicated function.
-Find $( f - g ) ( 5 )$ when $f ( x ) = - 5 x ^ { 2 } + 6$ and $g ( x ) = x - 3$.
A) $- 121$
B) $- 127$
C) $- 111$
D) 114

Question

Quizplus · Accepted Answer

To find $(f - g)(5)$, substitute $x = 5$ into both functions and subtract $g(x)$ from $f(x)$: $f(5) = -5(5)^2 + 6 = -5(25) + 6 = -125 + 6 = -119$, and $g(5) = 5 - 3 = 2$. Thus, $(f - g)(5) = -119 - 2 = -121$.

For the Functions F(x) and G(x), Evaluate the Indicated Function (f−g)(5)( f - g ) ( 5 )(f−g)(5)

For the Functions F(x) and G(x), Evaluate the Indicated Function $( f - g ) ( 5 )$