4 Graphing Calculator Reference Guides over matrices. Notes include how to enter matrix data, perform operations with matrices (add, subtract, multiply a matrix by a scalar and multiply matrices), find the determinant, find the inverse of a matrix and solve a system of equations using the matrix equation.These are great to use in conjunction with my lessons over matrices (Unit 3B):Introduction to MatricesMultiplying MatricesDeterminants and Inverse MatricesSolving Systems Using MatricesSoon to c