System of Equations - Elimination - Part A and B

System of Equations - Elimination - Part A and B

Assessment

Assessment

Created by

Flavia Chiorean

Mathematics

8th - 9th Grade

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6 questions

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1.

Multiple Choice

5 mins

1 pt

Solve the system of equations using elimination.

 3x+y=143x+y=–14  
 2xy=9–2x–y=9  

 (5,1)(-5,1)  

 (5,1)(5,-1)  

 (1,4)(1,4)  

 (1,4)(-1,4)  

2.

Multiple Choice

5 mins

1 pt

Solve the system of equations using elimination. 

 x+3y=18x+3y=18  
 x4y=25–x–4y=–25  

 (3,7)(3,7)  

 (3,7)(-3,7)  

 (7,3)(7,-3)  

 (3,7)(-3,-7)  

3.

Multiple Choice

5 mins

1 pt

Solve the system of equations: 
 3x+y=213x+y=–21  
 x+y=5x+y=–5   

 (3,8)(-3,8)  

 (8,3)(8,-3)  

 (3,8)(3,-8)  

 (8,3)(-8,3)  

4.

Multiple Choice

5 mins

1 pt

Solve by elimination:

 9x4y=79x-4y=7  
 x4y=17x-4y=-17  

 (1,5)(-1,5)  

 (7,5)(-7,5)  

 (7,5)(7,5)  

 (3,5)(3,5)  

5.

Multiple Choice

15 mins

1 pt

What would be the first step in finding the solution using elimination?
 2x+2y=22x+2y=-2  
 3x2y=123x-2y=12  

you cannot solve this using eliminiation

cross out the 2x and 3x

add the 2 equations to eliminate 2y and -2y

change each equation to slope intercept form and graph

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