1 a. 
The points are (3, 2), (3, 1), (8, 7), and (2, 9) 

1 b. 


2 a. 
The points are (9, 2), (0, 6), (4, 8), and (7, 8) 

2 b. 
The points are (3, 2), (1, 10), (6, 9), and (7, 7) 

3 a. 
The points are (1, 2), (9, 0), (3, 6), and (5, 7) 

3 b. 
It is a trapezoid. 

4 a. 
The points are (1, 3), (4, 4), (8, 10), and (3, 10) 

4 b. 
The points are (9, 1), (3, 1), (5, 5), and (8, 9) 

5 a. 
The points are (8, 7), (3, 4), (0, 10), and (10, 1) 

5 b. 
It is a trapezoid. 
