
Exploring the Substitution Method for Systems of Equations

Interactive Video
•
Mathematics
•
6th - 10th Grade
•
Hard
+1
Standards-aligned

Sophia Harris
FREE Resource
Standards-aligned
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When is the substitution method most useful?
When the equations are nonlinear
When the equations are in standard form
When one variable is close to being isolated
When both variables are already isolated
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the first example, what is the value of x after substitution?
4
5
3
2
Tags
CCSS.6.EE.A.2C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final solution to the system in the first example?
(4, 8)
(1, 2)
(3, 6)
(2, 4)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the second example, what is the first step to isolate x?
Subtract 2y from the other side
Add 2y to the other side
Divide both sides by 2
Multiply both sides by 2
Tags
CCSS.7.EE.B.4A
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the y-coordinate of the solution in the second example?
3
2
4
1
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the third example, what happens when you solve the equation after substitution?
The variables cancel out and you get a false statement
You get infinitely many solutions
You get a unique solution
The variables cancel out and you get a true statement
Tags
CCSS.8.EE.C.8B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does it mean when the variables cancel out and you get a false statement?
The system is inconsistent
There is a unique solution
There are infinitely many solutions
There is no solution
Tags
CCSS.8.EE.C.8B
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