Joe Beard Chapter 3 Vocab

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Across
  1. 3. a system of equations with no ordered pair that satisfies both equations.
  2. 8. a constant
  3. 9. a method that uses determinants to solve a system of liner equations.
  4. 12. to seek the optimal price or amount that is desired to minimize cost or to maximize profits.
  5. 13. a matrix that has only one row
  6. 14. a matrix that contains the constants of a system.
  7. 17. a set of equations with the same variables.
  8. 18. a matrix in which every element is zero
  9. 19. a system of inequalities that forms a region that is open.
  10. 20. the determinant of a 2 x 2 matrix
  11. 23. a region is bounded when the graph of a system of constraints is a polygonal region
  12. 26. a set of inequalities s with the same variables.
  13. 28. multiplying any matrix by a constant called a scalar; the product of a scalar k and an m x n matrix
  14. 29. a method of solving a system of equations in which for one variable in terms of order
  15. 30. a system of equations that has an infinite number of solutions.
  16. 31. a matrix form used to represent a system of equations.
Down
  1. 1. any rectangular array of variables or constants in horizontal rows and vertical columns
  2. 2. a method for finding the determinant of a third order matrix
  3. 4. a is an element of matrix A and b is element of matrix B, then the matrix A and B are equal only if a = b for all i and j values.
  4. 5. The intersection of the graphs in a system of constraints
  5. 6. a square array of numbers or variables enclosed between two parallel lines
  6. 7. an m × 1 matrix, that is, a matrix consisting of a single column of m elements
  7. 9. a matrix that contains only the coefficients of a system of equations.
  8. 10. Eliminate one of the variables in a system of equations by adding or subtracting the equations
  9. 11. the process of finding the maximum or minimum vales of a function defined by inequalities
  10. 15. detriment of a 3 x 3 matrix
  11. 16. operations are opposite operations
  12. 17. a matrix with the same number of rows and columns.
  13. 21. a matrix that only contains the variables of a system of equations.
  14. 22. conditions given to variables often expressed as linear inequalities.
  15. 24. a square matrix that when multiplied by another matrix equals that same matrix. If A is any n x n matrix and l is the n x n identity matrix then A * 1=A and I*A=A
  16. 25. a system of equation that has at least one ordered pair that satisfy both equations.
  17. 27. a system of equations with exactly one solution.