Invers fungsi f(x) = 4-2/x adalah

Untuk x ≠ 0,
[tex]f(x) = 4-\frac{2}{x}[/tex]
[tex]y = 4-\frac{2}{x}[/tex]
[tex]yx = 4x - 2[/tex]
[tex] 2 = 4x - yx [/tex]
[tex] 2 = x(4 - y) [/tex]
[tex] \frac{2}{4-y} = x [/tex]
[tex]f^{-1}(x) = \frac{2}{4-x}[/tex]