Tara S.

asked • 03/09/18

find polynomial function

given: double zero x=3   zeros x=1, x=-2     y-int (0,12)
please help I'm completely lost and don't know how to even start this

1 Expert Answer

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Philip P. answered • 03/09/18

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Tara S.

Thank you so much! this may sound stupid, but when doing the factored form, first I need to change the sign of the original given zeros?
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03/09/18

Philip P.

No it's good question.  Each factor, needs to equal zero for the specified x values.  So if -2 is given as a zero for x, then the factor is (x+2) because when I put in -2 for x, I get (-2 + 2) = 0.  So the number added to x has the opposite sign.
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03/09/18

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