Given: Equation of the curve 
= 
= Slope of the tangent at 
But according to question, slope = 
= 2
which is not possible.
Hence, there is no tangent to the given curve having slope 2.
Find the equation of all lines having slope 2 which are tangents to the curve y=1 /(3-x) , x ≠ 3
Find the equation of all lines having slope 2 which are tangents to the curve y=1 /(3-x) , x ≠ 3