Question

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Answer 1

Step-by-step explanation:

It is given that y=f(x)={\frac{ax-b}{bx-a}

Cross-multiplying the above equation, we get

⇒y(bx-a)=ax-by(bx−a)=ax−b

⇒ybx-ay=ax-bybx−ay=ax−b

⇒ybx-ax=-b+ayybx−ax=−b+ay

⇒x(yb-a)=ay-bx(yb−a)=ay−b

⇒x={\frac{ay-b}{by-a}

Thus, f(y)=x={\frac{ay-b}{by-a}

Hence proved

Answer 2

Hope this help..........