Question 1011110

look at "end behavior":

even-degree polynomials are either "up" on both ends or "down" on both ends
odd-degree polynomials have ends that head off in opposite directions:if they start "down" and go "up", they're positive polynomials; if they start "up" and go "down", they're negative polynomials



a.
degree:even
coefficient: negative

b.
degree:even
coefficient: positive


c.
degree:odd
coefficient: positive