Solve the system u = x - y, v=x+3y for x and y in terms of u and v. Then find the a(x,y) value of the Jacobian Find the image under the transformation of the a(u,v) triangular region with vertices (0,0), (3,3), and (3,-1) in the xy-plane. Sketch the transformed region in the uv-plane. The function for x in terms of u and v is x = The function for y in terms of u and v is y = The Jacobian of the transformation is J(u,v) = Choose the correct sketch of the transformed region in the uv-plane below. O A. O B. O C. O D. IL SE u (0,12) (-4,0) (0,12) (4,0) (-4,0) (0, -12) u (4,0) (0, -12)