WorksheetsPre-Calculus: Chapter 8 Review Day 1
Total questions: 24
Worksheet time: 2hrs 39mins
Name
Class
Date
1.
Add
a)
11 8
-4 2
-4 2
b)
3 2
-6 -6
-6 -6
c)
-3 2
-4 -6
-4 -6
d)
10 8
-6 2
-6 2
2.
Add.
a)
-2 4 -9
-1 -6 -17
-1 -6 -17
b)
-8 12 -9
1 6 17
1 6 17
c)
-8 4 -9
15 6 7
15 6 7
d)
-2 -4 -9
15 6 7
15 6 7
3.
Subtract
a)
3 -8
0 -1
0 -1
b)
3 -4
8 -13
8 -13
c)
-3 8
0 1
0 1
d)
3 -8
-8 1
-8 1
4.
Multiply
a)
25
25
5
25
5
b)
-25
25
-5
25
-5
c)
-10
-10
-6
-10
-6
d)
10
10
6
10
6
5.
Calculate the determinant
a)
0
b)
none
c)
-32
d)
-8
6.
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.
7.
What must be true in order to MULTIPLY two matrices?
a)
They must be square.
b)
The dimensions must be equal.
c)
The determinant can't equal 0.
d)
The #of columns of the 1st must equal the # of rows of the 2nd.
8.
What comes first in the order?
a)
Row
b)
Column
c)
The Egg
d)
The Chicken
9.
What is the value of element M34
a)
34
b)
42
c)
37
d)
π
10.
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
11.
Find the determinant of the matrix
a)
-28
b)
-20
c)
20
d)
0
12.
Multiply
a)
1 2
6 -8
6 -8
b)
-3 -5
-5 -11
-5 -11
c)
-2 8
-6 -12
-6 -12
d)
2 -3
5 -2
5 -2
13.
Find the product.
a)
undefined
b)
-3 16
17 12
8 -10
17 12
8 -10
c)
3 12
-15 -8
-1 -3
-15 -8
-1 -3
14.
Solve the system of equations:
a)
( 4, 0, -2)
b)
( -4, -2, 0)
c)
None of these
d)
( -4, 0, -2)
15.
Name the dimensions:
a)
6x2
b)
2x6
c)
12
d)
36
16.
Name the dimensions
a)
3x1
b)
1x3
c)
3
d)
1
17.
Can the operation be performed?
a)
Yes
b)
No
c)
potato
18.
Subtract
a)
3 -8
0 -1
0 -1
b)
3 -4
8 -13
8 -13
c)
-3 8
0 1
0 1
d)
3 -8
-8 1
-8 1
19.
How many rows are in a 7 x 3 matrix?
a)
7
b)
3
c)
21
d)
10
20.
a)
-1 -8
-1 0
-1 0
b)
1 -8
-1 0
-1 0
c)
1 -8
-7 0
-7 0
d)
1 8
-1 0
-1 0
21.
Can the operation be performed?
a)
Yes
b)
No
c)
tomato
22.
What is the value of element a23?
a)
2
b)
-1
c)
6
d)
1
23.
What is the value of element a34?
a)
2
b)
-3
c)
6
d)
1
24.
What is the value of element a31?
a)
2
b)
4
c)
5
d)
6
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