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Aug. 14, 2013

New Seats! Check the wall outside! Get out assignment from Monday and check your answers with a partner. Aug. 14, 2013. Assignment Questions?. How do you put Matrices into the Calculator?. Aug. 14, 2013. Matrix Determinant Taking your own notes!. Determinant.

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Aug. 14, 2013

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  1. New Seats! Check the wall outside!Get out assignment from Mondayand check your answers with a partner Aug. 14, 2013

  2. Assignment Questions?

  3. How do you put Matrices into the Calculator?

  4. Aug. 14, 2013 Matrix DeterminantTaking your own notes!

  5. Determinant • A real number used to solve different systems of equations (later in this class) • You can only find the determinant of a square matrix • 2x2 • 3x3 • Denoted with or as det(A)

  6. Finding the Determinant of a 2x2 Matrix

  7. Finding the Determinant of a 2x2 Matrix

  8. Class Assignment: pg. 102 #5, 6, 14-19At Home Assignment:2x2 Determinants WS

  9. Math 3 Warm Up 8/15/13 • Multiply . • When can you NOT multiply two matrices together? • Find

  10. Multiply

  11. Finding the Determinant of a 3x3 Matrix

  12. How do you find the area of a triangle? (5, 9) (9, 5) (1, 2)

  13. Class work: pg. 102 #7, 8, 20-25 • Assignment: 3x3 Determinant and Area of a Triangle WS • Quiz Tomorrow: MM3A4a&b • Be able to: • +/-, scalar matrices • Multiply matrices • Find determinants: 2x2 w/o calculator, 3x3 w/ • Find the area of a triangle using matrices

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