Sketch the Region R and Then Use Calculus to Find $y = x ^ { 3 }$

Multiple Choice

Sketch the region R and then use calculus to find the area of R. R is the region between the curve $y = x ^ { 3 }$ and the line y = 6x for x $\ge$ 0.

A) 0
B) 9
C) 1.5
D) 2.25