Test Review of Solving Systems by Matrix
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the following systems of equations.
-x+6y-z=6
2x+y-3z=16
-x+5y+3z=-7
A (0, -6, 0)
B (0, 0, -6)
C (3, 1, -3)
D (-6, 4, -3)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What do w, x, y and z equal in this matrix subtraction?
w = 13, x = 4, y = 7, z = 23
w = 13, x = -4, y = 11, z = 23
w = 13, x = 4, y = 11, z = 23
w = 13, x = 4, y = 11, z = 17
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(0, 0, -3)
Infinitely Many Solutions
No Solution
(0, 0, 0)
Tags
CCSS.HSA.REI.C.9
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A system of pulleys is loaded with a 128 lb and 32 lb weights. The tensions B and C in the ropes and the acceleration (A) of the 32 lb weight are represented by the following system: B - 2C. = 0 B - 2A = 128 C + A = 32 Use an augmented matrix to find B, C, and A.
B = 96
C = 48
A = -16
B = 0
C = 128
A = 32
B= 0
C= 0
A= 1
Tags
CCSS.HSA.REI.C.8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
a
b
c
d
Tags
CCSS.HSA.REI.C.9
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system of equations using a matrix technique and your GC
( 4, 0, -2)
( -4, -2, 0)
None of these
( -4, 0, -2)
Tags
CCSS.HSA.REI.C.9
7.
OPEN ENDED QUESTION
1 min • 5 pts
Solve the system by inverting the coefficient matrix and using (A^-1)(x)=b. Enter your answer as (x1, x2) format.
Evaluate responses using AI:
OFF
Tags
CCSS.HSA.REI.C.9
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