Systems of Equation by Substitution
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The equations of two lines are:
2x-y=4 and y=-2x+8.
What is the value of x in the solution for this system?
x=8
x=3
x=11
x=5
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the solution to this system?
x - y = 6
y = 2x - 5
(1,3)
(-1,3)
(-1,-7)
(1,-7)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This system has _____ solutions
No
1
2
Infinitely many
Tags
CCSS.8.EE.C.8B
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If a system of linear equations has one solution, what does this mean about the two lines?
Parallel lines
The same line
Intersecting lines
A triangle
Tags
CCSS.8.EE.C.8A
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system of equations by substitution.
(4, 5)
(2, 3)
(3, 2)
(5, 4)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system by substitution.
5x + 4y= −14
y = −7x − 15
(-2, -1)
(1, -2)
(-2, 1)
(-1, -2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the solution to this system? Solve by substitution.
y= 4x + 3
2x - 3y = 21
(3,-9)
(-3,-9)
(-3,9)
(0,1)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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