fungsi g(x)=1/2×+4

g(x)=1/2x + 4
invers nya:
g(x)= 1/2x + 4
y= 1/2 x + 4
y-4= 1/2 x
x= 2y-8

[tex] {f}^{ - 1} (x) = 2x - 8[/tex]