Introduction to Matrices

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

What comes first in the order?

• Row
• Column

Tags

CCSS.4.NBT.B.5

What are the dimensions of this matrix?

• 3x1
• 1x3
• 3x3
• 1x1

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

• 8
• 9.01
• 6
• 1

How many rows are in a 7 x 3 matrix?

• 7
• 3
• 21
• 10

How many columns are in a 5 x 4 matrix?

• 5
• 4
• 20
• 9

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

Tags

CCSS.HSN.VM.C.7

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

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

• 8
• 9.01
• 6
• 1

In Matrix R (pictured) what element is a₂₃?

• 8
• 9.01
• 6
• 1