Travis Owen Chapter 3 Vocab

5. Eliminate one of the variables in a system of equations by adding or subtracting the equations.
6. The process of finding the maximum and minimum of a function for a region defined by inequalities.
8. A set of inequalities with the same variables
10. A system of inequalities that forms a region that is open.
11. A system of equations with no ordered pair that satisfies both equations.
14. Multiplying a matrix by a constant called a scalar.
17. Determinant of a 2x2 matrix
18. To seek the optimal price or amount to minimize cost and maximize profits.
19. A system of equations with infinite solutions.
21. A matrix used to represent a system of equations.
22. A Matrix that contains only the coefficients of a system of equations.
25. Conditions given to an equation.
26. A matrix in which every element is zero.
27. A method that uses determinants to solve a system of equations.
28. A matrix that contains only the variables of a system of equations.
29. A matrix with the same number of rows and columns.
30. A method of finding the determinant of a 3x3 matrix.

1. A matrix with only one row.
2. When the graph of a system of constraints is a polygonal region.
3. The determinant of a 3x3 matrix
4. A matrix that contains the constants to a system.
7. A set of equations with the same variables.
9. A system of equations with exactly one solution.
12. A system of equations that has at least one ordered pair that satisfies both.
13. A method for solving systems of equations in which one is solved for on variable in terms of an other.
15. A square matrix that when multiplied by an other matrix equals that same matrix.
16. A square array of numbers or variables within parallel lines.
20. A rectangular array of numbers and variables in rows and columns.
23. The intersection of graphs in a system of constraints.
24. A constant.