what could be the root of this graph?

👨🏻‍🏫 學術台數學

[匿名]

2016-04-25 6:39 pm

http://s1291.photobucket.com/user/alexandra2397/media/IMG_20160425_133421056%201_zpsdtgs1ihh.jpg.html?filters[user]=136002772&filters[recent]=1&sort=1&o=0

回答 (1)

Sqdancefan

2016-04-25 7:02 pm

The graph changes sign at x=4. The sign will not change when multiplicity is even, as at x=-2. The root at x=4 possibly has multipicity 3.

參考: https://www.desmos.com/calculator/qpocv0hmog

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