Systems Review adding and subtracting
Authored by Michael (MHS)
Mathematics
8th - 9th Grade
CCSS covered
Used 8+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the best method do you use?
y = 6x − 11
−2x − 3y = −7
Graphing
Substitution because a variable is defined
Elimination because both equations are in standard form.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Use substitution to solve:
y= 3x
x + y = -32
( -8, -24)
(24, 6)
(8, 24)
( -8/3, -8)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which of the following correctly shows substitution being set up?
y=3x
x + y = -32
x + 3x = -32
y + y = -32
y= 3(x + y = -32)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Given the problem:
y = 3x + 1
y = 5x - 9
Step 1: 3x + 1 = 5x - 9
Step 2: -2x + 1 = 9
Step 3: What is the next step?
Add 1 to both sides
Subtract 1 from both sides
Add 2x to both sides
Add 9 to both sides
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the best method to use?
−4x − 2y = −12
4x + 8y = −24
Graphing
Substitution because a variable is defined
Elimination because the equations are in standard form.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What variable do you eliminate?
4x + 8y = 20
−4x + 2y = −30
X because they have opposite signs
Y because they have opposite signs
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Solve the system given:
3x - y = 7
2x + y = 3
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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