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January 31, 2015

January 31, 2015

Posted by **Melinda** on Friday, December 9, 2011 at 4:34pm.

Maximum:3

Minimum:1

Is this a valid reason:

A quartic polynomial function has a 3 Turning points. The turning point is always 1 less than the degree. For example degree 4=3 TP, degree 5=4 turning points?

What about the minimum?

- precalculus -
**Steve**, Saturday, December 10, 2011 at 4:56amA polynomial of odd degree n has at most n-1 turning points, and may have none.

Think of a line or the curve for y=x^3.

A polynomial of even degree n may have at most n-1 turning points, but must have at least one. Think of a parabola or y=x^4. An even-degree polynomial opens up or down, but must have a min or max.

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