matrices

What comes first in the order?

• Row
• Column

Tags

CCSS.2.G.A.2

How many rows are in a 7 x 3 matrix?

• 7
• 3
• 21
• 10

Tags

CCSS.3.OA.A.3

What 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.

Tags

CCSS.HSN.VM.C.8

Can the operation be performed?

• Yes

• No

• Sometimes

• only Ms Marusic knows

Subtract

• -5
  -8
  3
  10
• -9
  8
  3
  2
• 5
  -8
  3
  10
• -5
  8
  3
  2

Tags

CCSS.HSN.VM.B.4

CCSS.HSN.VM.C.10

CCSS.HSN.VM.C.8

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.HSA.APR.A.1

CCSS.HSA.APR.D.7

In Matrix R (pictured) what element is in the second row, third column?

• 8
• 9.01
• 6
• 1

Tags

CCSS.HSN.VM.C.6

• A
• B
• C
• D

Tags

CCSS.HSN.VM.A.1

CCSS.HSN.VM.A.2

CCSS.HSN.VM.B.4

CCSS.HSN.VM.C.10

CCSS.HSN.VM.C.8

Evaluate the determinant of the matrix BY HAND.

• -21

• 0

• 9

• 12

When solving for C in the equation CD=E using inverse matrices, you use the equation:

• C=D^-1E

• C=ED^-1

• C=E^-1D

• C=DE^-1