Name: 
 

Quiz 9-4: Solving Systems by Elimination Using Multiplication


Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 
Use elimination to solve the system of equations.
mc001-1.jpg
a.
mc001-2.jpg
c.
mc001-4.jpg
b.
mc001-3.jpg
d.
no solution
 

 2. 
Use elimination to solve the system of equations.
mc002-1.jpg
a.
mc002-2.jpg
c.
infinitely many solutions
b.
mc002-3.jpg
d.
no solution
 

 3. 
What is the value of x if the system of equations  mc003-1.jpg is solved by elimination?
a.
2
c.
4
b.
6
d.
-4
 

 4. 
If the system mc004-1.jpg is to be solved by elimination of x, and the first equation is multiplied by 3, then by which number should the second equation be multiplied?
a.
3
c.
-3
b.
5
d.
2
 

 5. 
What is the value of y if mc005-1.jpg is solved by elimination?
a.
-2
c.
-3
b.
8
d.
none of these
 

 6. 
Solve the system mc006-1.jpg.
a.
mc006-2.jpg
c.
mc006-4.jpg
b.
mc006-3.jpg
d.
mc006-5.jpg
 

Short Answer
 

 7. 
Use elimination to solve the system of equations.
7x + 4y = 10
7x + 9y = 5
 

 8. 
Use elimination to solve the system of equations.
sa008-1.jpg
 



 
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