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# The matrix

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### The matrix

1. 1. Opener<br />What is the reciprocal of 1/9? <br />What is |-8+-2|? <br />In January, the wind chill was -8 degrees. In August, the heat index was 108. Find the difference between these temperatures. <br />
2. 2. What is the matrix? <br />
3. 3. The Matrix is a movie…..<br />The Matrix is a 1999 American science-fiction-action film starring Keanu Reeves. <br />The plot according to the Internet Movie Database: <br />A computer hacker learns from mysterious rebels about the true nature of his reality and his role in the war against the controllers of it.<br />
4. 4. The Math Matrix<br />a rectangular array of quantities or expressions set out by rows and columns;<br />treated as a single element and manipulated according to rules<br />1<br />4<br />3<br />6 <br />8846 <br />7351 <br />
5. 5. The Math Matrix<br />
6. 6. Adding and Subtracting<br />Add or subtract each element in the first matrix by its corresponding element in the other matrix. <br />Matrices MUST be the same size to add or subtract. <br />They MUST have the same number of rows and columns<br />The answer matrix will be the same size as the matrices in the original problem. <br />