Question Stem Consider the lines L and L defined by L x 2 y 1 0 and L x 2 y 1 0 For a fixed constant 2 let C be the locus of a point P such that the product of the distance of P from L ar the distance of P from L is 22 The line y 2x 1 meets C at two points R and S where the distanc between R and S is 270 Let the perpendicular bisector of RS meet C at two distinct points R and S Let D be the square of th distance between Rand S