Jika diketahui f(x)=4x dan f(g(x))=-x/2+1,maka nilai g(x) adalah....

f(x) = 4x
f(g(x)) = 4g(x)

4g(x) =( -x/2 ) + 1
4g(x) = (-x/2) + (2/2)
4g(x) = ( -x+2) / 2
g(x) =( (-x+2)/2) / 4
g(x) = ( (-x + 2) / 2) × 1/4
g(x) = ( - x + 2) / 8
--> g(x) = [tex] \dfrac{1}{8} (-x+2) [/tex]

f(x) = 4x
(f(g(x)) = -x/2 + 1

fog(x) = -x/2 + 1
4(g(x)) = -x/2 + 1
g(x) = 1/4 (-x/2 + 1) = -x/8+ 1/4