# 4.1 - in matrix A 22 a Identify element in matrix A 31 a 13...

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1 Chapter 4 Section 1 Matrices! But first… When are matrices used? r Find solutions to systems of linear equations r Computer graphics (to project a 3-D image onto a 2-D screen) r Genetics r Cryptography (Code breaking) r And more! Our Objectives for Today r Identify the dimensions and elements of a matrix r Organize statistical data using matrices. - = 3 6 5 . 0 4 . 9 2 1 A Matrix A is a ____ X ____ matrix Write the dimensions of each matrix [ ] 6 3 = A = 9 8 7 6 5 4 3 2 1 B - = 1 . 3 8 7 C Identifying a Matrix Element - - = 9 5 . 3 0 1 4 1 7 8 12 A Identify element in matrix A Identify element
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Unformatted text preview: in matrix A 22 a Identify element in matrix A 31 a 13 a Energy is often measured in British Thermal Units (BTUs). Write a matrix to represent the data below. 10 20 30 40 50 60 70 80 90 100 China Russia U.S.A. Production Consumption Let each row represent a country and each column represent production or consumption levels. 95 73 26 41 34 33 Open your book to page 166 Let’s do Check for Understanding 4 parts a and b together. Homework #___ r Page 166 (1-11, 14-18)...
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