Death and Piecewise Linear Functions

Although this may seem a little gruesome, it is not uncommon for businesses to give discounts for volume sales. In this case, a mortician charges less per pound for bodies weighing more than a certain amount.

The local mortician charges by the pound for embalming according to the following table:

piecewise_lin_death_01

Find a piecewise linear function that models the cost as a function of weight.

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Matrices with Technology

wolfram_01As you may have noticed, some matrix operations are very tedious by hand. In particular, matrix multiplication and matrix inverses are much easier to do using a graphing calculator or WolframAlpha. In the Weekly Learning Plan, I put several handouts to help you use your calculator to do these problems.

However, some of you do not have a graphing calculator…you’ll need to use WolframAlpha to carry out these operations.

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