System of Equations with Elimination
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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13 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Use Elimination to find the solution to the system of equation.
(2,-2)
(-2,2)
(3,-4)
(-4,3)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Use Elimination to find the solution to the system of equation.
(-4,3)
(3,-4)
(4,6)
(1,6)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 7 pts
Solve the following using elimination.
(10,-1)
(-1,10)
(-1,-10)
(-10,-1)
Answer explanation
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 7 pts
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
5.
MULTIPLE CHOICE QUESTION
1 min • 7 pts
Which variable would be easiest to eliminate?
x
y
Neither
Answer explanation
The terms with x in them have opposite coefficients (4x and -4x), so they will be the easiest to eliminate when we add the equations together.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 6 pts
Solve using Elimination:
5x + y = 9
10x − 7y = −18
(4, -11)
(1, 4)
(-1, 14)
(-4, 29)
Answer explanation
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 6 pts
4x + 8y = 20
−4x + 2y = −30
(-1, 7)
(-7, 1)
(7, -1)
(1, -7)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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