
Matrix-Vector Multiplication Concepts

Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Hard
Standards-aligned

Liam Anderson
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What operation is being performed in the video tutorial?
Division of a matrix by a scalar
Subtraction of two vectors
Multiplication of a matrix by a vector
Addition of two matrices
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the dimensions of matrix A?
3 by 2
2 by 3
2 by 2
3 by 3
Tags
CCSS.HSN.VM.C.8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the condition for matrix multiplication to be valid?
Both matrices must be square matrices.
The number of columns in the first matrix must equal the number of rows in the second matrix.
Both matrices must have the same dimensions.
The number of rows in the first matrix must equal the number of columns in the second matrix.
Tags
CCSS.HSN.VM.C.11
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the resulting dimension of the product of matrix A and vector w?
3 by 1
1 by 3
2 by 3
2 by 1
Tags
CCSS.HSN.VM.C.11
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the top entry of the resulting vector calculated?
By dividing elements of matrix A by vector w
By subtracting elements of vector w from matrix A
By multiplying corresponding elements of the first row of matrix A and vector w, then summing them
By adding all elements of matrix A
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the dot product used for in this context?
To transpose a matrix
To compute the entries of the resulting vector
To calculate the determinant of a matrix
To find the inverse of a matrix
Tags
CCSS.HSN.VM.C.11
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of the top entry in the resulting vector?
35
41
15
27
Tags
CCSS.HSN.VM.C.11
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