Find $f \circ g.$ f (x) = -5x - 9 g (x) = x + 5
A) $( f \circ g ) ( x ) =$ -5x - 34
B) $( f \circ g ) ( x ) =$ -5x - 4
C) $( f \circ g ) ( x ) =$ -5x2 - 34x - 45
D) $( f \circ g ) ( x ) =$ -6x - 14
E) $( f \circ g ) ( x ) =$ -6x - 4

Question

Quizplus · Accepted Answer

The composition $(f \circ g)(x)$ means applying $g$ first, then $f$. So, $g(x) = x + 5$, and then $f(g(x)) = -5(x + 5) - 9 = -5x - 25 - 9 = -5x - 34$.

Find f∘g.f \circ g.f∘g. F (X) = -5x - 9 G (X) = X

Find $f \circ g.$ F (X) = -5x - 9 G (X) = X