Use MATLAB to plot the velocity vector fields and the streamlines

When an incompressible, nonviscous fluid flows against a plate in a plane (two-dimensional) flow, an exact solution for the equations of motion for this flow is u-Ax, v -Ay, with A>0 for the sketch shown. The coordinate origin is located at the stagnation point 0, where the flow divides and the local velocity is zero. Plot the streamlines in the flow