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Understanding Matrix Addition and Subtraction in Algebra

In this section, we explore the addition and subtraction of matrices, essential for data representation in a tabular format. A matrix is defined as a rectangular array of numbers, and its order is characterized by the number of rows and columns, such as 3x4 or 2x3. It's crucial to note that two matrices can only be added or subtracted if they share the same order. Students are encouraged to identify the order of given matrices and perform specified operations to enhance their understanding. Please refer to assignment problems on Page 89 for practice.

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Understanding Matrix Addition and Subtraction in Algebra

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  1. Algebra 1 Section 2.4Add and subtract matrices Often a set of data is arranged in a table form. A matrix is a rectangular array of numbers .

  2. The order of a matrix is the number of rows by columns 3 X 4 2 X 3

  3. Student examplesName the order of the matrices. 5 X 2 1 X 3

  4. Two matrices can be added or subtracted only if they have the same order

  5. Student examplesPerform the indicated operations

  6. Assignment • Page 89 • problems 8-24 even 25,32,38,44

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