Coordinate Geometry

Let **ABCD** be a parallelogram such that the coordinates of its three vertices **A, B, C** are **(1, 1)**, **(3, 4)**,...

The area of the quadrilateral bounded by the $$Y$$-axis, the line $$x = 5$$, and the lines $$|x-y| - |x-5| = 2$$ is ...