5.2 Elimination and Substitution
8th - 9th Grade
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5.2 Elimination and Substitution
Quiz
•
Mathematics
•
8th - 9th Grade
•
Medium
Standards-aligned
Meylin Allen
Used 5+ times
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which method would be best (quickest) for solving the system below:
3x - 4y = -2
y = 2x + 1
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which variable would be the "easiest" to eliminate?
x (I would just need to multiply by the bottom equation by 2)
y (I would just need to multiply the top equation by -7 and the bottom equation by 12)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What would you multiply the top equation by to eliminate x?
Multiply the top equation by −2
Multiply the top equation by −10
Multiply the top equation by 4
Multiply the top equation by −4
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When using substitution, once you get the lonely variable by itself and substitute, what does the equation look like?
2(−4x+16)+3y=20
2(4x+16)+3y=20
2x+3(−4x+16)=20
2x+3(4x+16)=20
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Solve the system:
x + y = 19
y = 3x - 1
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Solve the system of equations:
y=5x+3
y=-2x-4
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Solve the system:
x + 6y = 17
x - 3y = 8
Tags
CCSS.8.EE.C.8B
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