\(y=2x\)
\(y=2x+1\)
\(y=-x\)
\(y=x+2\)
\(y=4x\)
Given that:
\(y=\dfrac{x-2}{x-3}\)
at \(x=4\), \(y=\dfrac{2}{1}=2\)
Hence we can write,
\(\dfrac{dy}{dx}=\dfrac{(x-3)-(x-2)}{(x-3)^2}\)
at \( x=4\) , \(\dfrac{dy}{dx}=-1\)
Tangent can be represented as
\(y-2=-1(x-4)\)
\(x + y − 6 = 0\)
\(x + y + k = 0\)
Comparing both these equation we found
\(x+y=0\)
\(\therefore x=-y\) (_Ans)