If $f ( x ) = \frac { 9 } { x } \text { and } g ( x ) = \frac { 9 } { x - 2 } \text {, }$ find $( f \circ g ) ( 4 )$ .
A) 4
B) 2
C) $-$ 2
D) $-$ 3

Name: If $f ( x ) = \frac { 9 } { x } \text { and } g ( x ) = \frac { 9 } { x - 2 } \text {, }$ find $( f \circ g ) ( 4 )$ . A) 4 B) 2 C) $-$ 2 D) $-$ 3
Brand: Quizplus
Rating: 4.7 (36 reviews)

Question

Quizplus · Accepted Answer

To find $(f \circ g)(4)$, we first apply $g$ to 4, getting $g(4) = \frac{9}{4 - 2} = \frac{9}{2}$. Then, we apply $f$ to this result: $f\left(\frac{9}{2}\right) = \frac{9}{\frac{9}{2}} = 2$.

If f(x)=9x and g(x)=9x−2, f ( x ) = \frac { 9 } { x } \text { and } g ( x ) = \frac { 9 } { x - 2 } \text {, }f(x)=x9​ and g(x)=x−29​,

If $f ( x ) = \frac { 9 } { x } \text { and } g ( x ) = \frac { 9 } { x - 2 } \text {, }$