point(s) possible A flat circular plate has the shape of the region x +y $ 1. The plate, including the boundary where x + y =1, is heated so that the temperature at the point (x,y) is T(x.y)=x +2y + ,x. Find the temperatures at the hottest and coldest points on the plate. The hottest temperature on the plate is |degrees. (Type an integer or a simplified fraction.) The coldest temperature on the plate is degrees. (Type an integer or a simplified fraction.)