Solving Systems Using Matrices

Quiz
•
Mathematics
•
9th Grade
•
Hard
+2
Standards-aligned
Anthony Clark
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nancy went to the grocery story. On Monday she purchased 4 apples and 6 bananas for a total of $13. On Wednesday she purchased 3 apples and 7 bananas for a total of $13.50. Which system of equations represents the situation?
4x + 6y = 3
13.5x - 13y = 6
x + y = 4
x - y = 6
4x + 6y = 13
3x + 7y = 13.5
4x - 6y = 13
3x - 7y = 13.5
Tags
CCSS.8.EE.C.8C
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
What is an appropriate first row command to solve this by Gaussian Elimination?
2R2 + R2 -> R2
-2R1 + R2 -> R2
R3 +R2 --> R3
2R1 + R2 --> R2
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
What is the solution represented by this matrix?
(2,3,5,0)
(2,3,4,5)
Infinite Solutions
No Solution
Tags
CCSS.8.EE.C.8B
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
This is an example of a
System of Quadratic Equations
Reduced Row Echelon Form
Augmented Matrix
Row Echelon Form
Tags
CCSS.HSA.REI.C.8
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Solve!
(2,7,5)
(-8,7,5)
(-8,2,5)
(-3,2,5)
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
What is the solution to the 4x5 Matrix?
( 3, 4, 9, 6 )
( 3, 4, 9, -6 )
( -6, 9, 4, 3 )
( 6, 9, 4, 3 )
Tags
CCSS.HSN.VM.C.11
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system
3x - y = 4
2x - 3y = -9
No Solution
( 3 , 5 )
( -3 , -5 )
( 5 , 3 )
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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