Answer:
Graph A (first graph from top to bottom)
Explanation:
Given
, since the degree of the polynomial is 3, the function must be odd and will resemble the shown shape in the graphs. The degree of 3 indicates that there are 3 zeroes, whether distinct or non-distinct. Therefore, the graph must intersect the x-axis at these three points.
Factoring the polynomial:

Thus, the three zeroes of this function are
and the graph must intersection the x-axis at these points. The y-intercept of any graph occurs when
. Thus, the y-coordinate of the y-intercept is equal to
and the y-intercept is (0, 12).
The graph that corresponds with this is graph A.