Solving Systems of Linear Equations by Elimination
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
Work Must be shown:
Solve the system by elimination. −8x − 10y = 20 −8x − 6y = −4
Infinite number of solutions
(6, 5)
(−6, −5)
(5, −6)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the solution?
(1, -2)
(-2, 1)
(-4, 1)
(2, 1)
Tags
CCSS.HSA.REI.C.9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the x-coordinate of the ordered pair that solves:
1 x + 1 y = 3
1 x - 1 y = 4
(14, 0)
3.5
7
(2, 7)
Tags
CCSS.HSA.REI.C.9
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by elimination (with double-distribution): 10 g - 4 j = 0 6 g - 9 j = - 33
(4, 10)
(5, 4)
(2, 5)
(- 8, 30)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the y-coordinate of the ordered pair that solves:
3 x + 2 y = 2
3 x + 1 y = 7
(2, -2)
4
-5
(-5, 4)
Tags
CCSS.HSA.REI.C.9
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve this system of equation
5x - 2y = 9
2x + 7y = -12
(1, -1)
(-1, 1)
(-1, 2)
(1, -2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by elimination:
No solution
(-1,8)
(-2,-3)
(-1,-2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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