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a(x,y) Solve the system u = 3x - y, v= 2x + y for x and y in terms of u and v. Then find the value of the Jacobian - a(u, v) Find the image under the transformation of the triangular region with vertices (0,0), (1,3), and (1, - 2) 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. OB. O c. OD. AL AV (-5,0) U (0,5 (0,5) (5,0) (0. -5) (0, -5) (- 5,0) 5,0