Test Review for Matrix

Name the transformation for this matrix:

• Reflection across the line y=x

• Reflection across the y-axis

Dimensions?

• a

• b

• c

• d

Find the inverse of the matrix

• A

• B

• C

• D

Solve for matrix Z.

• 2
  3

• -2
  -3

• 18
  3

• 8
  4

find: B*A

• 47     30
  9     5

• 17     15
  42     35

• 10     25
  7     1

• not possible because rows do not match columns

Find A+B

• 8     10
  8      1 

• 12     25
  7     1

• 10     30
  0     1

• can't add two together because the rows dont match columns

Perform scalar multiplication on the matrix

• A

• B

• C

• D

Find the determinant of the matrix

• A

• B

• C

• D

Add

• 11    8
  -4     2

• 3     2
  -6    -6

• -3    2
  -4    -6

• 10    8
  -6    2

What are the dimensions of this matrix?

• 2 x 3

• 3 x 2

• 6 x 1

• 1 x 6