Unit 5 Matrices Test

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

What is the name of each entry of a matrix?

• Row
• Element
• Dimension
• Rectangle

What always comes first in reference to matrix order?

• Row
• Column
• Element
• Dimension

What is a₃₁ for the given matrix?

• -4
• 4
• 6
• 2

Multiply

• 20     15    -10
  30     -5         0
• -20      15     -10
  30     -5          0
• 1        8       3
  11     4        5
• 20     -15     10
  -30         5        0  

Tags

CCSS.HSN.VM.C.7

• use answers above

• use answers above

• use answers above

• use answers above

What is the result of a 4 x 3 matrix being multiplied by a 3 x 1 matrix?

• 4 x 3
• 3 x 4
• 4 x 1
• 1 x 4

Tags

CCSS.HSN.VM.C.8

You can multiply a 2X3 matrix by which matrix?

• 2X2
• 2X12
• 3X12
• 2X3

Tags

CCSS.HSN.VM.C.8

Section 3.6: Perform the matrix multiplication operation indicated.

• These matrices cannot be multiplied because the dimensions do not properly match.

• 
• 
• 

Tags

CCSS.HSN.VM.C.8

What is the determinant of this matrix?

• 5
• 25
• -25
• 1