Matrices Activities

• 12

• 10

• -1

• 1

Solve the system of equations using Cramer's Rule.

2x + y = 7

x + 4y = 7

• (1, 3)

• (3, 1)

• (3, -1)

• (-1, 3)

Solve using Cramer's Rule

3x + 2y = 16

7x + y = 19

• (2,5)

• (2,-5)

• (-2,-5)

• (-2,5)

Evaluate

• 20

• 2

• 18

• -2

Solve the system of equations using Cramer's Rule.

• Undefined

If the matrices can be multiplied, what dimension is the product? If not, write undefined.

• ( 2 x 2 )

• ( 6 x 2)

• ( 2 x 6 ) )

• ( 3 x 2 )

You can multiply a 2X3 matrix by which matrix?

• 2X2
• 2X12
• 3X12
• 2X3

Determine if the matrix has an inverse, if so find it.

• No
•  0   1
  -1   2
• -1   3
    1   -2
•   2   -1
  -1   1

How many columns are in a 5 x 4 matrix?

• 5
• 4
• 20
• 9