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WorksheetsGrade 11: Operations of Matrices
Total questions: 8
Worksheet time: 11mins
Name
Class
Date
1.
What comes first in the order?
a)
Row
b)
Column
2.
What are the dimensions of this matrix?
a)
2 x 3
b)
3 x 2
c)
6 x 1
d)
1 x 6
3.
In Matrix R (pictured) what element is in the second row, third column?
a)
8
b)
9.01
c)
6
d)
1
4.
How many columns are in a 5 x 4 matrix?
a)
5
b)
4
c)
20
d)
9
5.
Perform the matrix row operation: 2R1
a)
−2 4 16 14
b)
1 4 10 9
c)
3 4 10 9
d)
This is not a valid row operation!
6.
Perform the matrix row operation: 21R2
(a)
7.
Perform the matrix row operation: R2+R1
a)
1 −6 2 23
b)
3 10 14 23
c)
−4 20 −4 16
d)
This is not a valid row operation!
8.
Perform the matrix row operation: R3−3R1
a)
0 12 −36 −12
b)
−4 20 4 16
c)
−6 24 12 30
d)
This is not a valid row operation!
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