System of Equations Using Elimination

Quiz
•
Mathematics
•
8th Grade
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider the system of equations: 6x + 2y = 4 6x + 6y = 24 What could be the first step in solving the system of equations using elimination?
Multiply the second equation by 3
Multiply the first equation by -1
Add the two equations
Add 4 to both sides of the first equation
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Krista and Tywana were solving the system of equations below. They each shared what strategy they would use to solve the system. Who do you agree with? Is either student wrong?
Krista is correct, because she used the substitution method.
Tywana is correct, because she used the elimination method.
Both Krista and Tywana are correct, because they used two different methods.
Neither one of them is correct.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What should be your first step to solve the following system of equations using the Elimination Method?
Add the equations together to eliminate the x's
Multiply the top equation by 3, so you can eliminate the y's
Multiply the bottom equation by 2, so you can eliminate the x's
Set the two equations equal to each other
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Solve the system of equations:
3x + y = 1
4x + y = 2
x = 1
y = 4
y = -2
x = 0
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
FILL IN THE BLANK QUESTION
1 min • 5 pts
Solve the system with linear combinations method (Elimination method).
x + 4y = -4
3x + 5y = 2
Type in answer with no spaces between terms. Ex: (-2,1)
If no soultion type in NS
If infinitely many solutions type in IMS
Answer explanation
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve using Elimination.
(0,0)
(-8,-8)
(-8,0)
(0,-8)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
2x - 6y = 20
2x + 5y = -11
what would the top equation become when you multiply everything by -1?
2x - 6y = 20
-2x - 6y = -20
-2x + 6y = 20
-2x + 6y = -20
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
8.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
________________
are two or more equations that have the same variables and work together.graphing lines
elimination method
system of equations
table
slope intercept form
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
9.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
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
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