Solutions Two Variables

Quiz
•
Mathematics
•
9th Grade
•
Hard
+1
Standards-aligned
Anthony Clark
FREE Resource
18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
what is the variable that willl be "eliminated"?
5x - 4y = 11
5x + 4y = -14
x variable
y variables
both variables
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
what does the top equation need to be multiplied by to create a zero pair?
2x - 6y = 20
2x + 5y = -11
-1
1
-2
2
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the solution to the system?
(-1, 3)
(-3, 1)
(3, -1)
(-3, -1)
Tags
CCSS.8.EE.C.8B
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To Find the solution to this system of equations, Juan decided to multiply the entire first equation by -1. What method is Juan employing to find the solution?
Substitution
Graphing
No Solution
Elimination
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the first step Terri could take to find the solution to the system of equations using the Elimination Method?
Multiply by -1 through one equation to flip the signs and create opposite y-values.
Multiply by -1 through one equation to flip the signs and create opposite x-values.
Multiply by 1 through one equation to flip the signs and create opposite y-values.
Isolate a variable and substitute the value in the other equation.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tauren graphed the two equations shown in the System of Equations. He discovered that the lines appeared in exactly the same location. What is the solution to this system of equations?
(-7, -9)
(-10, 5)
No Solution
Infinitely Many Solutions
Tags
CCSS.8.EE.C.8B
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
AJ was asked to find the solution to this system of equations. x = 7 - 2y 2x + y = 5 Noticing that x was isolated and set equal to 7 - 2y, he decided to replace x in the second equation with its value. What method is AJ using and what equation did he write?
Elimination; 2(7-2y) + y = 5
Graphing; 2x = (7-2y) + y = 5
Substitution; 2(7-2y) + y = 5
Substitution; x = 7 - 2y + 2x + y = 5
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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