Systems of Equations Using the Elimination Method
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 • 12 pts
Solve the following system by using elimination:
-9x - 2y = -23
-10x - 5y = -20
(-3, -2)
(3, 2)
(3, -2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
Solve the following system by using elimination:
3x + 3y = 0
7x + 5y = -16
(8, 4)
(-8, 8)
(-8, -8)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Add the x terms in the two equations and the y terms in the two equations so you get 3x + 8y = 11
Multiply all terms in the top equation by 2 so that you can eliminate the x terms
Multiply the x in the first equation by -2 so you get -2x + y = 2
Multiply all terms in the top equation by -2 so that you can eliminate the x terms.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What would be the first step in finding the solution with elimination?
cross out the 3y and -3y
cross out the 4x and x
change all the signs of the second equation
add 1 and -11
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What would be the first step in finding the solution using elimination?
2x + 2y = -2
3x - 2y = 12
you cannot solve this using eliminiation
cross out the 2x and 3x
cross out the 2y and -2y
change to slope intercept form and graph
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The first step in using the Elimination Method to solve a system of equations is to
get both equations in slope-intercept form.
look for a zero pair.
get the x term or y term isolated.
identify the m and the b of the equation.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Multiply the entire first equation by 2
Multiply the entire first equation by -2
Multiply the entire second equation by -1
Multiple the entire first equation by 7
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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