Algebra 2 Matrices and Complex Numbers

Add

• 11 8

  -4 2

• 3 2

  -6 -6

• 11 8

  -4 -6

• 10 8

  -6 2

Subtract

• 3 -8

  0 -1

• 3 -4

  8 -13

• -3 8

  0 1

• 3 -8

  -8 1

What do m, n, p and q equal in this scalar matrix multiplication?

• m=8, n=9, p=-4, q=4

• m=15, n = -45, p=20, q=-5

• m=20, n=-5, p=15, q=-45

• m=-5, n=20, p=-45, q=15

What are the dimensions of this matrix?

• 2 x 3

• 3 x 2

• 6 x 1

• 3 x 3

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

• 8

• 9.01

• 6

• 1

You can multiply a 2 X 3 matrix by which matrix?

• 2 X 2

• 2 X 12

• 3 X 12

• 2 X 3

How many columns are in a 5 x 4 matrix?

• 5

• 4

• 20

• 9

Find the product of the two matrices.

• Not Possible

• -3 16

  17 12

  8 -10

• 3 12

  -15 -8

  -1 -3

• -3 16

  12 10

  8 -10

Simplify: i⁷⁹

• i

• 1

• -1

• -i

Multiply and simplify you answer: (2i)(3i)

• 5i

• -5

• 6i

• -6