Solve Systems by Elimination
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
Used 7+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-4x - 6y = 6
4x + 6y = -4
no solution
(2,0)
(-4,0)
(0,0)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system by elimination.
7x - y = -10
-7x + 5y = -6
(-2, -4)
(-2, -1)
(-4, -1)
(6, -8)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by elimination:
-x+2y=17
2x+2y=-10
ARN
(-9,4)
(-9,-4)
(9,-4)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2 haircuts and 4 hair dyes takes 450 minutes. Which system of equations represents the situation?
3x + 2y = 315
2x + 4y = 450
3x + 2y = 450
2x + 4y = 315
2x + 2y = 315
3x + 4y = 450
Tags
CCSS.8.EE.C.8C
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When using any of the 3 methods to solve a system of linear equations the resulting solution is the same no matter which method is used.
True; using any method will result in the correct solution.
False; the solution varies because the solution depends on which method is used.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the following system by using elimination:
-2x - 5y = -15
x + 8y = 13
(5, 1)
(1, 5)
(5, -1)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by elimination
4x-6y= -6
-2x-12y= -12
(0,1)
(1,0)
(1,1)
(2,1)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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