1. Under the mapping w = exp z, the image of the x-axis is unbounded. 2. Under the mapping w = exp z, the image of the y-axis is unbounded. 3. Under w = exp z, equally spaced lines parallel to the y-axis map to equally spaced concentric circles. 4. Under w = exp z, the line y = c maps to a ray in the w-plane. The opposite ray arises from the line y = - c.
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