**In class**students asked questions and we solved problems to get ready for the Chapter 6 Test. The chapter Review on p. 351: 1-10 is

**today's assignment**.

**Study Guide **On the ch. 6 test students will need to be able to:

- Perform matrix arithmetic, including addition, subtraction, multiplication (by a scalar or another matrix)
**by hand**. This includes determining when two matrices cannot be added / multiplied etc. due to their dimensions. - Represent and solve a system of equations using an augmented matrix and row reduction
**by hand (quickly solving a 2 variable, 2 equation system, and able to solve a 3-variable, 3 equation system given sufficient time)** - Solve a system of inequalities by graphing the inequalities and clearly finding the feasible region (again by hand)
- Solve a
*linear programming*problem by writing a system of inequalities to represent the constraints, finding the feasible region, and determining a point to maximize or minimize a profit function. - Recognize situations in which a
*transition diagram and transition matrix should be used*. Use transition matrices and matrix operations to solve real-world problems.