Answer:
Plot each point, connect in the given order, add parallel line segments to those already there, take the coordinates of the intersection and record as answer.
a) (-1,3), (-1,2), (9,2)
- Missing point is (9, 3)
b) (3,7), (5,7), (5,-3)
- Missing point is (3, -3)
c) (-5,-5), (1,4), (4,2)
- Missing point (-2, -7)
d) (-52,73), (96,73), (96,1483)
- Missing point (-52, 1483)
<em>See attached</em>
