Chapter 3 Vocab

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Across
  1. 2. a region where the graph of a system of constraints is a polygonal region
  2. 4. the intersection of the graphs in a system of constraints
  3. 10. a matrix form used to represent a system of equations
  4. 11. conditions given to variables often expressed as linear inequalities
  5. 14. the process of finding the maximum or minimum values of a function for a region defined by inequalities
  6. 16. a method of solving a system of equations in which one equation is solved for one variable in terms of the other
  7. 17. to seek the optimal price or amount that is desired to minimize costs or maximize profits
  8. 18. a matrix that has only one row
  9. 19. the determinant of a 2x2 matrix
  10. 20. a method that uses determinants to solve a system of linear equations
  11. 21. a matrix with the same number of rows and columns
  12. 24. a square array of numbers enclosed between two parallel lines
  13. 29. a set of inequalities with the same variables
  14. 30. if two matrices have their corresponding elements equal then they are called equal matrices
  15. 31. a system of inequalities that forms a region that is open
  16. 32. a matrix in which every element is zero
Down
  1. 1. a system of linear equations has exactly one solution
  2. 3. a matrix that only contains the variables of a system of equations
  3. 5. a matrix consisting of a single column of m elements
  4. 6. multiplying any matrix by a constant called a scalar
  5. 7. any rectangular array of variables or constants in horizontal rows or vertical columns
  6. 8. a system of equations that has at least one ordered pair that satisfies both equations
  7. 9. a system of equations with no ordered pair that satisfies both equations
  8. 12. a matrix that contains only the coefficients of a system of equations
  9. 13. determinate of a 3x3 matrix
  10. 15. a method for finding the determinate of a third order matrix
  11. 21. a constant
  12. 22. a set of equations with the same variables
  13. 23. eliminate one of the variables from a system of equations by adding or subtracting the equations
  14. 25. an operation that is opposite of the original operation
  15. 26. a matrix that contains a constants of a system
  16. 27. a system of equations that has an infinite number of solutions
  17. 28. a square matrix that when multiplied by another matrix equals that same matrix