Suppose you emit an ultrasound pulse in the x direction from the source at each of eight different positions y. Each pulse receives a series of echoes, as shown in the table below (Echo times are in us) y (mm): 0 10 20 30 40 50 60 70 Echo 1 35 37 39 40 45 47 48 49 Echo 2 97 98 58 56 57 96 91 90 Echo 3 71 73 71 Echo 4 99 99 98 Draw an x-y coordinate system (x=0 is location of the source) and put a bright spot correspond to each echo. Assume c = 1.540 m/s in each tissue, and ignore attenuation. Create a two-dimensional ultrasound image.