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Matrices and Data

Matrices and Data. Holt Algebra 2. Definitions. Matrix is a rectangular arrangement of numbers into rows and columns Dimensions are read row x column Address is read through the location. Reading Matrices. ROW. How many total rows does it have? How many total columns does it have?

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Matrices and Data

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  1. Matrices and Data Holt Algebra 2

  2. Definitions • Matrix is a rectangular arrangement of numbers into rows and columns • Dimensions are read row x column • Address is read through the location 4.1 Matrix Operations

  3. Reading Matrices ROW • How many total rows does it have? • How many total columns does it have? • What are its dimensions? COLUMN 2 3 2 x 3 Row X column

  4. -3 4 -8 2 -8 16

  5. Entering a Matrix into the calculator: • Push 2nd x-1 • Arrow over to edit, use up and down arrows to select matrix name, enter • Enter number of rows, • Enter number of columns, • Enter each entry followed by enter. • 2nd quit to “save” the information in the Matrix 2---enter 2---enter -3--enter 4---enter 2---enter -8---enter

  6. Entering a Matrix into the calculator: • Push 2nd x-1 • Arrow over to edit, arrow down to B to select matrix name, enter • Enter number of rows, • Enter number of columns, • Enter each entry followed by enter. • 2nd quit to “save” the information in the Matrix 2---enter 1---enter -8--enter 16---enter

  7. Using the matrix once it is entered: • 2nd x-1 • 1---enter • x-1---enter • 2nd x-1 • 2---enter • enter -1 x = 0 and y = -2

  8. 4 -2 3 -2 2 5 2 16 -5 -2 8 4

  9. Entering a Matrix into the calculator: • Push 2nd x-1 • Arrow over to edit, use up and down arrows to select matrix name, enter • Enter number of rows, • Enter number of columns, • Enter each entry followed by enter. • 2nd quit to “save” the information in the Matrix 3---enter 3---enter 4--enter -2---enter 3---enter 2--enter 2--enter 5--enter -5--enter 8--enter -2--enter

  10. Entering a Matrix into the calculator: • Push 2nd x-1 • Arrow over to edit, arrow down to B to select matrix name, enter • Enter number of rows, • Enter number of columns, • Enter each entry followed by enter. • 2nd quit to “save” the information in the Matrix 3---enter 1---enter 4---enter -2--enter 16---enter

  11. Using the matrix once it is entered: • 2nd x-1 • 1---enter • x-1---enter • 2nd x-1 • 2---enter • enter -1 x = 5 and y = 8 and z = -2

  12. #6 Change on worksheet

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