Answer:
see below
Step-by-step explanation:
The general left-to-right downward slant tells you the function is odd degree with a negative leading coefficient. Only one answer choice matches: choice C.
__
Additionally, the "touch" of the x-axis at x=0 tells you x^2 is one of the factors of the function. The two sign changes are consistent with 2 (or 0) positive real roots. If signs of odd-degree terms are reversed, then the one sign change tells you there is one negative real root.
