First Step Systems Substitution

Quiz
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The first step in solving using the substitution method is __________.
get x by itself
get y by itself
get either variable by itself
add the equations together
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which variable should you isolate first in the system?
3x + 2y = 10
x - 5y = 18
The x in the first equation
The y in the first equation
The y in the second equation
The x in the second equation
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system by substitution
3x - y = 4
x + 2y = 6
(-2, 2)
(2, -2)
(2, 2)
(-2, -2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the best method do you use?
x = 6y − 11
−2x − 3y = −7
Graphing, because they are both in slope-intercept form
Substitution because a variable is isolated (solved for)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
These two lines intersect at _____
(4, -2)
(4, 2)
(-2, 4)
No solution
Tags
CCSS.8.EE.C.8B
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many solutions does the graph have?
One solution
No solution
Infinite solutions
Tags
CCSS.8.EE.C.8B
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is the best method to use?
Graphing
Substitution because a variable is isolated.
Elimination because both equations are in standard form.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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