WorksheetsMatrices - quick check
Total questions: 10
Worksheet time: 50mins
Name
Class
Date
1.
What are the dimensions of matrix B?
a)
2 x 3
b)
3 x 2
c)
-8 x 10
d)
3 x 3
2.
Using matrix A find the element a2,3
a)
8
b)
6
c)
-5
d)
5
3.
Matrix C is a 2 x 3 matrix with c2,1=6
Which could be matrix C?
a)
b)
c)
d)
4.
Matrix C is a 3 x 2 matrix with c1,2=6
Which could be matrix C?
a)
b)
c)
d)
5.
What is the name of each entry of a matrix?
a)
Row
b)
Element
c)
Dimension
d)
Rectangle
6.
Complete the statement below:
Entries (or elements) in a matrix are determined by their _____ position.
a)
row, column
b)
column, row
7.
Find B-A
a)
-3 1
7 -1
7 -1
b)
1 0
1 -4
1 -4
c)
4 0
-6 1
-6 1
d)
not possible because rows do not match columns
8.
What must be true in order to ADD two matrices?
a)
They must be square.
b)
The dimensions must be equal.
c)
The determinant can't equal 0.
d)
The column of the 1st must equal the row of the 2nd.
9.
What do w, x, y and z equal in this matrix subtraction?
a)
w = 13, x = 4, y = 7, z = 23
b)
w = 13, x = -4, y = 11, z = 23
c)
w = 13, x = 4, y = 11, z = 23
d)
w = 13, x = 4, y = 11, z = 17
10.
Subtract
a)
-5
-8
3
10
-8
3
10
b)
-9
8
3
2
8
3
2
c)
5
-8
3
10
-8
3
10
d)
-5
8
3
2
8
3
2
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