Right slant Line 1 endpoints are at (minus 11, minus 5) and at (minus 2, 4) in
quadrants 3 and 2. Left slant Line 2 endpoints are at (minus 2, 4) and at (2, minus 2)
in quadrants 2 and 4. Horizontal Line 3 endpoints are at (2, minus 2) and at (11,
minus 2) in quadrant 4. Is it increasing