# The matrix

Post on 18-Jan-2015

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<ul><li> 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 /></li></ul>
<p> 2. What is the matrix? <br /> 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. 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. The Math Matrix<br /> 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 /> 7. Adding<br /> 8. Subtracting<br /> 9. Practice<br /> 10. Multiplication by scalar<br />To multiply a matrix by a scalar, simply multiply each element by the scalar.<br />The answer matrix will be the same size as the matrix in the problem.<br /> 11. Multiplication by scalar<br /> 12. Multiplication by scalar<br />This matrix represents the sales total, in dollars, of two pet store owners.If there is a 5% tax, how much tax will be charged in each store for each pet? <br /> 13. Practice<br /> 14. Coming<br />Tomorrow<br /></p>

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