Jika f(x) = 2x-5 / -x+4 maka f¹ (x)…..

Fungsi Invers

f(x)=  (ax + b) / (cx +d) –> f⁻¹ (x) =  (-dx + b)/(cx- a)

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f(x) =  (2x – 5 )/ ( – x + 4 )

f⁻¹ (x) =  ( – 4x –  5 ) / (- x – 2)  

atau f ⁻¹ (x) =  (4x + 5 ) / ( x + 2)