2. (1 pt) Non-real complex roots (sometimes / always / never) occur in pairs. 3. (1 pt) For a polynomial, the degree and the leading coefficient (sometimes / always / never) determine the end behavior. 4. (1 pt) (True / False) If a polynomial has a degree of 7, then the number of "turns" could be 3. 5. (1 pt) A odd degree polynomial will (sometimes / always / never) have a real zero. 6. (2 pt) Is it possible for Descartes' Rule of Signs to reveal no change of signs for positive and negative roots? Explain