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WorksheetsMatrix
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
What are the dimensions of this matrix?
a)
2 x 3
b)
3 x 2
c)
6 x 1
d)
1 x 6
2.
What is a Matrix?
a)
An equation of over 5 numbers or symbols
b)
A set of numbers in rows and columns
c)
A method of finding the nth value of a series
d)
A complicated number system
3.
If the matrices can be multiplied, what dimension is the product? If not, write undefined.
a)
undefined
b)
( 3 x 1 )
c)
( 1 x 2 )
d)
( 3 x 2 )
4.
What is the value of element a23?
a)
2
b)
-1
c)
6
d)
1
5.
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.
6.
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
7.
When a 3x6 matrix is multiplied by a 6x5 matrix, what will the dimensions of the product be?
a)
6x6
b)
3x6
c)
3x5
d)
5x6
8.
If A and B are invertible matrix then (AB)-1 =
a)
A-1B-1
b)
AB
c)
B-1A-1
d)
none of these
9.
When you multiply a matrix by the inverse matrix, you obtain the
a)
inverse matrix.
b)
transpose matrix.
c)
Identity matrix
d)
original matrix.
10.
If |A| = 0, then A is
a)
zero matrix
b)
singular matrix
c)
non-singular matrix
d)
Identity matrix
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