Matrix Ac

In Matrix R (pictured) what element is a₂₃?

• 8

• 9.01

• 6

• 1

• A
• B
• C
• D

What are the dimensions of this matrix?

• 2 x 3

• 3 x 2

• 6 x 1

• 1 x 6

To add or subtract matrices, which of the following must be true?

• They are the same matrix

• They have the same dimensions

• Rows in the 1st matrix must have the same # of terms as the columns as the 2nd matrix

• All matrices can be added

What is the name of each entry of a matrix?

• Row

• Element

• Dimension

• Rectangle

• 
• 
• 
• 

What is the type of this matrix?

• Column Matrix

• Identity Matrix

• Lower Triangular Matrix

• Null Matrix

What is a Matrix?

• An equation of over 5 numbers or symbols 

• A rectangular arrangement of numbers

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

• A complicated number system

These matrices are being multiplied. Determine the dimension/size of the new matrix.

• Can't multiply them

• 4  x  2

• 3  x  3

• 4  x  3

Which distributive law for properties of multiplication matrices?

• (A+B)C = AC + AB

• A(BC) = (AB)C

• A(B+C) = AB + AC

• (AB)C = A(BC)