Find the coordinates of the point where the diagonals of the parallelogram formed by joining the points (−2,−1), (1,0), (4,3) and (1,2) meet.
The coordinates of the mid point of line segment joining the points A(-5,4) and B(7,-8) are
The vertices of the triangle formed by the region representing the system of inequalities x + y ≤ 6, x ≥ 1, y ≥ 1