Review Test #8 - Algebra 3

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• It is not possible.

Given matrices A & B:  A is a (4 X 5) matrix B is a (5 X 1) matrix  What are the dimensions of the product of A times B?

• 4x1
• 4x33
• 33x1
• Matrix does not exist

Subtract

• 3    -8
  0   -1
• 3   -4
  8  -13
• -3   8
  0    1
• 3   -8
  -8    1

Find the determinant's value

Calculate the determinant

Find -2C + 5D

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• Does Not Exist

Which of the following is the inverse of the matrix

A= ⌈3 0⌉

⌊0 2⌋

• [1/2 0]

  [0 1/3]

• [-3 0]

  [0 -2]

• ⌈1/3 0⌉

  ⌊0 1/2⌋

• [2 0]

  [0 3]

multiply

• undefined

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find: B*A

• 47     30
  9     5
• 17     15
  42     35
• 10     25
  7     1
• not possible because rows do not match columns

Name this Function:

• Constant

• Linear

• Simple Rational

• Cubic