

1. 
Solve the system of equations algebraically. x  y + 2 = 0 x^{2} + y^{2} = 10 


A. 
(4, 6) 
B. 
(1, 3) 


C. 
(1, 3), (3, 1) 
D. 
(3, 1), (1, 3) 


Hint 


2. 
Solve the system of equations algebraically. x^{2}  y^{2} = 12 x^{2} + 2y^{2} = 24 


A. 
(2, 4), (2, 4) 
B. 
(4, 2), (4, 2) 


C. 
no solution 
D. 
(±4, 2), (±4, 2) 


Hint 


3. 
Graph the system of inequalities and . 


A. 

B. 



C. 

D. 



Hint 


4. 
Graph the system of inequalities and . 


A. 

B. 



C. 

D. 



Hint 


5. 
Which set of inequalities represents the graph? 





A. 
x^{2} + y^{2} 3; x y + 1 
B. 
x^{2} + y^{2} 9; y x + 1 


C. 
x^{2} + y^{2} 9; y x + 1 
D. 
x^{2} + y^{2} 3; y x + 1 


Hint 

