Section 1  

Num  Answer  Num  Answer  
2  A(8,5), B(14,0), C(6,15), D(4,20), E(0,20), F(10,5), G(5,10)  20  (1.5, 5)  
6  4  22  (2, 1)  
8  5  24  (2.5, 2)  
10  13  30  (3, 2)  
12  11.66  32  16.78  
16  5.59  34  31.78 
Section 2  

(If Java applets work in your browser, you could fire up a graphing tool and make the graphs your own self.)  
Num  Answer  
4  
6  
10  
18  
20  
22  
26 
xintercept: (3, 0) yintercept: (0, 6) 

28 
xintercept: (5/6, 0) yintercept: (0, 5) 

42 
xintercept: (3, 0) yintercept: (0, 2) 

44 
xintercept: (6, 0) yintercept: (0, 2) 
Section 3  

Num  Answer  Num  Answer  
2 

38  perpendicular  
6  undefined slope (a vertical line) 
46  neither  
8  0 slope (a horizontal line) 
50  parallel  
12 

56 


18  x = 12  60 


22  m = 1 y = x  1  62  2x + 3y = 10  
26  m = 2 y = 2x + 3 
64 


30 
y = 2x + 6  
32 


34 
y = 2x + 2 