Algebra 2 Matrices

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

Tags

CCSS.HSN.VM.C.8

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

Tags

CCSS.HSN.VM.C.8

Dimensions?

• a
• b
• c
• d

Tags

CCSS.HSN.VM.C.6

What is the value of element M₃₄?

(Think about what is in the 3rd row and 4th column)

• 34

• 42

• 37

• π

What is a Matrix?

• An equation of over 5 numbers or symbols

• A rectangular array of numbers in rows and column

• A method of finding the n^th value of a series

• A complicated number system

You can multiply a 2X3 matrix by which matrix?

• 2X2
• 2X12
• 3X12
• 2X3

Tags

CCSS.HSN.VM.C.8

Multiply

• 1   2
  6   -8
• -3   -5
  -5   -11
• -2     8
  -6   -12
• 2  -3
  5   -2

Tags

CCSS.HSN.VM.C.8

Which of the following calculates the determinant of the given 2X2 matrix?

• (1)(3)+(0)(-4)

• (1)(3)-(0)(-4)

• (0)(-4)-(1)(3)

• (0)(-4)+(1)(3)

Tags

CCSS.HSN.VM.C.12

Does the inverse of the given matrix exist?

• Yes

• No

Tags

CCSS.HSA.REI.C.9