Matrices test review

If a determinant = 0, one interpretation of the points is that they are

• in a triangle

• collinear

Which option below correctly shows the steps to find the inverse of this matrix?

• 
• 
• 
• No Inverse Exists

Tags

CCSS.HSA.REI.C.9

What would be the dimensions (output) of AB?

• undefined

• 2 X 2

• 3 X 2

• 3 X 3

Tags

CCSS.HSN.VM.C.8

Using determinants, find the area of the triangle whose vertices are (0, 0), (4, 3) and (8, 0).

• 12

• 21

• 24

• NONE OF THE ABOVE

Tags

CCSS.HSG.GPE.B.7

Solve for x and y.

• x = -4 and y = 2

• x = -9\2 and y = 2

• x = 9/2 and y = -2

• x = -5 and y = 1

If |A| = 0, then A is

• zero matrix

• singular matrix

• non-singular matrix

• Identity matrix

What is a Matrix?

• An equation of over 5 numbers or symbols 
• A set of numbers in rows and columns
• A method of finding the n^th value of a series
• A complicated number system

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

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

Determine the dimensions of the new matrix. If it’s not possible, select Not Possible. 

• Not Possible
• 4  x  2
• 3  x  3
• 4  x  3

Tags

CCSS.HSN.VM.C.8