Hi, I'm having incredible trouble getting a reasonable answer to this problem:

Find the center of mass of a thin plate covering the region bounded below by the parabola y=x^2 and above by the line y=x if the plate's density at the point (x,y) is d(x)=12x. I have an idea of what to do for the x coordinate, but I'm confused as to how to do the y coordinate. Thanks!