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- 1. Multiple Choice
If A is a 2 × 3 matrix, and B is a 3 × 4 matrix, how many columns does AB have?
2
3
4
AB is not defined
- 2. Multiple Choice
2x3
3x2
3x4
4x3
- 3. Multiple Choice
What is a23
14
4
1
3
- 4. Multiple Choice
BA=
Undefined
- 5. Multiple ChoiceWhat must be true in order to ADD two matrices?They must be square.The dimensions must be equal.The determinant can't equal 0.The column of the 1st must equal the row of the 2nd.
- 6. Multiple Choice
What do w, x, y and z equal in this matrix equation?
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
- 7. Multiple Choice
Matrices can be multiplied only...
if the row of the first matrix is equal to the column of the second matrix.
if the column of the first matrix is equal to the column of the second matrix.
if the column of the first matrix is equal to the row of the second matrix.
if the row of the first matrix is equal to the row of the second matrix.
- 8. Multiple Choice
What would be the dimension of the matrix product AB?
If A1X4 and B4X7
1X7
4X4
4X7
7X1
- 9. Multiple ChoiceWhat comes first in the order?RowColumn
- 10. Multiple Choice
Find the inverse of the matrix.
No Inverse Exists
- 11. Multiple Choice
What is the area of triangle XYZ with vertices X(8,-6), Y(-4,2) and Z(-18,-12)?
280
140
180
240
- 12. Multiple ChoiceIf a system has infinite solutions, then it means:The lines or planes don't intersect.The lines or planes are parallel.The lines or planes intersect at a line.You get 0=some number when solving the system.
- 13. Multiple Choice
if the points A(3,-2),B(k,2) and C(8,8) are collinear,then the value of k is:
2
-3
5
-4
- 14. Multiple Choice
n = p
n = p, m =q
m = n = p = q
m = q
- 15. Multiple Choice
0
I2
-I2
none of these
- 16. Multiple Choice
(3,7)
(5,14)
(9,14)
(3,14)
- 17. Multiple Choice
unit matrix
null matrix
symmetric matrix
skew symmetric matrix
- 18. Multiple Choice
1/3
3
5
1
- 19. Multiple Choice
1
1/2
/2
none of these
- 20. Multiple Choice
- Answer choicesTagsAnswer choicesTags