Unit 4: Matrices (Chapter 11)

Chapter 11 Homework Problems / Solutions

Systems Review Problems:

• Testing Solutions

• Graphing / Elimination / Substitution

• How Many Solutions (Graphical) / How Many Solutions (Algebraic)

• Cumulative Review

Matrix Row Operations

• System => Augmented Matrix

• Row Operations

Matrix Operations

• Adding / Subtracting

• Matrix Equations

• Multiplying by Scalar

• Matrix Equations #2

• Multiplying Matrices

Determinants and Inverses

• Determinants of 2x2 matrices

• Determinants of 3x3 matrices

• Inverse Matrices

• Is a Matrix Invertible?