This section is focused on the word problem base on our daily life. The question always ask for the maximun amount or the minimum amount, and by solving that type of problem, we should always use the following steps:
1 Carefully read the problem, and write the constraints or inequalities
2 Graph the inequalities, and shade the region corresponding to the stsyem
3 Find the vertices of the region
4Write the function to find the maximum or the minimum (z=ax+by)
5 Put the vertices into the function to find the answer
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