Quadratic Representation of Pair of Straight Lines/Examples/x^2 - x y - 2 y^2 + 2 x + 5 y = 3

Examples of Quadratic Representation of Pair of Straight Lines
The equation:


 * $x^2 - x y - 2 y^2 + 2 x + 5 y = 3$

represents the two straight lines embedded in the Cartesian plane:

Proof
The result follows from Quadratic Representation of Pair of Straight Lines.