The graph of y = x cubed is transformed as shown in the graph below. Which equation represents the transformed function? On a coordinate plane, a cubic root function approaches y = negative 1 in quadrant 2, has an inflection point at (0, 0), and then approaches y = 1 in quadrant 4.
y = negative 2 x cubed
y = negative 6 x cubed
y = 2 x cubed
y = 6 x cubed