Systems of Equations Eliminations
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by elimination:
4x+9y=28
-4x-y=-28
(-7,0)
(6,0)
(-6,0)
(7,0)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by elimination:
7x + y = -9
-3x - y = 5
No solution
(1,8)
(-2,-3)
(-1,-2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4x + 8y = 20
-4x + 2y = -30
Which variable will be eliminated?
The x
The y
The z
The unknown
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The solution to a system of equations is any ordered pair that makes both equations true.
TRUE
FALSE
Tags
CCSS.8.EE.C.8B
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A
B
C
D
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Solve using Elimination Method:
x - y = 11
2x + y = 19
(10,-1)
(-1,10)
(3,-4)
(6,7)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve using Elimination Method:
x - y = 12
4x + y = 33
(-9,-3)
(3,-9)
(9,-3)
(-3,9)
Answer explanation
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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