Intro to Elimination Systems
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which variable would be easiest to eliminate?
4x + 8y = 20
−4x + 2y = −30
x because they have equal coefficients but opposite sign
y because they have equal coefficients but opposite sign
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which variable would be easiest to eliminate?
x because they have equal coefficients but opposite sign
y because they have equal coefficients but opposite sign
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which variable would be easiest to eliminate?
you cannot solve this using eliminiation
x because they have equal coefficients but opposite sign
y because they have equal coefficients but opposite sign
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What could we multiply the 1st equation by to eliminate the x variable?
3
4
-3
-4
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What could we multiply the 1st equation by to eliminate the y variable?
3
4
-3
-4
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What could we multiply the 1st equation by to eliminate the x variable?
x + 6y = 17
x - 3y = 8
1
-1
3
6
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What could we multiply the 2nd equation by to eliminate the y variable?
x + 6y = 17
x - 3y = 8
1
-1
2
3
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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