

1. 
Solve the system of equations 2x + 3y = 7 and x  y = 4 by graphing. 


A. 

B. 



C. 

D. 



Hint 


2. 
If you use the elimination method to solve the system of equations 3x  4y = 9 and 2x + 3y = 7, which of the following would be the best method?
Method I: Multiply both sides of the first equation by 2, and multiply both sides of the second equation by 3. Then add the two equations.
Method II: Multiply both sides of the first equation by 3, and multiply both sides of the second equation by 4. Then add the two equations.



A. 
Method I 
B. 
Neither Method I nor Method II is correct. 


C. 
Both Method I and Method II are correct. 
D. 
Method II 


Hint 


3. 
The cost of producing an item is $5 per item plus an initial cost of $2000. The selling price is $10 per item. Find the breakeven point. 


A. 
4500 items 
B. 
400 items 


C. 
4000 items 
D. 
450 items 


Hint 


4. 
Solve the system of equations y = 0.5x and 4y = x  2 by graphing. 


A. 

B. 



C. 

D. 



Hint 


5. 
Solve the system of equations x = 4 and 3x  4y = 12 by graphing. 


A. 

B. 



C. 

D. 



Hint 

