Final Review Number one
Let D denote the solid pyramid with vertices located at (4,0,0), (0,1,0), (0,0,2), and the origin. Set up $\iiint_{D} f(x,y,z)dV$. So when we were talking about this in class we drew the graph first and then set up the equation ax+by+cz=d and then d was substituted for 4 because it was the least common multiple of the points. My question is how were the other numbers found in the equation which made it x+4y+2z=4 ?