Define the order of a matrix as the number of rows by the number of columns
Add and subtract matrices and know these operations are possible only when the dimensions are equal
Recognize that matrix addition and subtraction are commutative
Multiply matrices by a scalar and understand the distributive and associative properties apply to matrices
Multiply matrices and know when the operation is defined
Recognize that matrix multiplication is not commutative
Understand and apply the properties of a zero matrix • understand and apply the properties of an identity matrix
Find the determinant of a square matrix and understand that it is a nonzero value if and only if the matrix has an inverse • use 2 X 2 matrices as transformations of a plane and determine the area of the plane using the determinant
Write a system of linear equations as a matrix equation and use the inverse of the coefficient matrix to solve the system
Write and use vertex-edge graphs to solve problems
derive the formula for the sum of a finite geometric series and use it to solve problems" -Georgia Standards for Excellence: PreCalculus- Unit 5