Equations in Two Variables
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
Anthony Clark
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A solution to a system
of two linear equations
in two variables
must make BOTH
equations TRUE.
False
True
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How can you tell if a point is a solution to a system?
It makes the first equation true.
The (x,y) coordinates satisfy both equations
It makes logical sense
It makes neither equation negative
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2 haircuts and 4 hair dyes takes 450 minutes. Which system of equations represents the situation?
3x + 2y = 315
2x + 4y = 450
3x + 2y = 450
2x + 4y = 315
2x + 2y = 315
3x + 4y = 450
Tags
CCSS.HSA.CED.A.3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A solution to a
system of linear equations
with two variables
is written as an ordered pair
( x, y ).
True
False
5.
MATH RESPONSE QUESTION
1 min • 1 pt
?
Mathematical Equivalence
OFF
Tags
CCSS.8.EE.C.8C
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For what values of a and b does the following pair of equations have an infinite numbers of solutions. 2x+3y=7, a(x+y)-b(x-y)=3a+b-2
a = 5, b = - 1
a = - 5, b = 5
a = 5, b = 1
a = 1, b = 5
Tags
CCSS.8.EE.C.8B
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For what value of k will the following equations have infinitely many solutions? 2x-3y=7, (k+1) x+ (1-2k) y=5k-4
1
2
3
5
Tags
CCSS.8.EE.C.8B
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